332354 + Interview Questions in Secondary School in Math Page 42 InterviewSolution

2051.	If one zero of the polynomial X square + 8 x minus 5 then the value of k is
Answer» ANSWER: it is so EASY the he was Step-by-step EXPLANATION: SUSAN baba hajnanna 325 3737 2728

2051.

If one zero of the polynomial X square + 8 x minus 5 then the value of k is

Answer»

ANSWER:

it is so EASY

the he was

Step-by-step EXPLANATION:

SUSAN
baba
hajnanna
325
3737
2728

Discussion

2052.	18. A box contains 50 packets of biscuits each weighing 120g.b) If the total number of boxes to be transported are 1750 then how many boxes are still left to be transported?
Answer» Given: TOTAL number of packets = 50 . WEIGHT of each packet = 120 g Weight of a box = 50 x 120 g = 6000 g = 6 kg [∵ 1000 g = 1 kg] Required number of boxes = 900÷ 6 = 150.

2052.

18. A box contains 50 packets of biscuits each weighing 120g.b) If the total number of boxes to be transported are 1750 then how many boxes are still left to be transported?

Answer»

Given: TOTAL number of packets = 50

. WEIGHT of each packet = 120 g

Weight of a box = 50 x 120 g = 6000 g = 6 kg

[∵ 1000 g = 1 kg]

Required number of boxes = 900÷ 6 = 150.

Discussion

2053.	Help me solve the question given below
Answer» ANSWER: okkkkkkkkkkkk okkkkkkkkkkkk okkkkkkkkkkkk okkkkkkkkkkkk

2053.

Help me solve the question given below

Answer»

ANSWER:

okkkkkkkkkkkk okkkkkkkkkkkk okkkkkkkkkkkk okkkkkkkkkkkk

Discussion

2054.	Dont come to give wrong answerquestion: prove 1=2 attachment pics would be great,
Answer» Answer: 1+1=2 1/1 -1 = 2 therefore 1=3

2054.

Dont come to give wrong answerquestion: prove 1=2 attachment pics would be great,

Answer»

Answer:

1+1=2

1/1 -1 = 2

therefore 1=3

Discussion

2055.	Question No. 24ofThe dimension ofA is called the nullity of the matrix A.AnswerA. kernelB.rangeC.domaimD. codomain
Answer» Step-by-step EXPLANATION: I don't KNOW the answer Please MARK me as BRAINLIST

2055.

Question No. 24ofThe dimension ofA is called the nullity of the matrix A.AnswerA. kernelB.rangeC.domaimD. codomain

Answer»

Step-by-step EXPLANATION:

I don't KNOW the answer

Please MARK me as BRAINLIST

Discussion

2056.	4x-2y-4=0. 4x-4y-5=0 solve this with substitution method
Answer» Answer: 4x-2y-4=0. 4x-4y-5=0 SOLVE this with SUBSTITUTION METHOD

2056.

4x-2y-4=0. 4x-4y-5=0 solve this with substitution method

Answer»

Answer:

4x-2y-4=0. 4x-4y-5=0 SOLVE this with SUBSTITUTION METHOD

Discussion

2057.	Q1: Simplify: a) (-2)-(-12) b): (-3) -(-8 +9)
Answer» ANSWER: a -2-(-12) -2+12 =10 b. -3-(-8+9) -3 -1 = -4 Step-by-step explanation: hopes it HELPS you PLZ follow and DROP me many thanks

2057.

Q1: Simplify: a) (-2)-(-12) b): (-3) -(-8 +9)

Answer»

ANSWER:

a -2-(-12)

-2+12

=10

b. -3-(-8+9)

-3 -1

= -4

Step-by-step explanation:

hopes it HELPS you PLZ follow and DROP me many thanks

Discussion

2058.	Which one is greater *1 point√2∛4∜3√3
Answer» ANSWER: $\sqrt{3}$ PLEASE MARK me BRAINLIEST.

2058.

Which one is greater *1 point√2∛4∜3√3

Answer»

ANSWER:

$\sqrt{3}$

PLEASE MARK me BRAINLIEST.

Discussion

2059.	6. Using long division method, find the HCF of the following numbers(b) 144,372
Answer» Step-by-step EXPLANATION: By this U UNDERSTAND PROPERLY

2059.

6. Using long division method, find the HCF of the following numbers(b) 144,372

Answer»

Step-by-step EXPLANATION:

By this U UNDERSTAND PROPERLY

Discussion

2060.	Find the roots (if they exist) of the following quadratic equations by the method of completing the square:x^2–2 √5 x+1 = 0
Answer» Step-by-step explanation: X^2 - 2✓5 x + 1 =0 ✓D = ✓ 20 - 4 = ✓16 = 4 alpha = (-(-2✓5) + 4 ) / (21) = (2✓5 + 4)/2 = 2 + ✓5 beta = (-(-2✓5) - 4 ) / (21) = (2✓5 - 4)/2 = ✓5 - 2

2060.

Find the roots (if they exist) of the following quadratic equations by the method of completing the square:x^2–2 √5 x+1 = 0

Answer»

Step-by-step explanation:

X^2 - 2✓5 x + 1 =0

✓D = ✓ 20 - 4

= ✓16

= 4

alpha = (-(-2✓5) + 4 ) / (2*1)

= (2✓5 + 4)/2

= 2 + ✓5

beta = (-(-2✓5) - 4 ) / (2*1)

= (2✓5 - 4)/2

= ✓5 - 2

Discussion

2061.	Number names1.726422.553453.666004.30301
Answer» Step-by-step explanation: 1. SEVENTY two THOUSAND six hundred forty two 2. Fifty five thousand three hundred forty five 3. sixty six thousand six hundred 4. THIRTY thousand three hundred one

2061.

Number names1.726422.553453.666004.30301

Answer»

Step-by-step explanation:

1. SEVENTY two THOUSAND six hundred forty two

2. Fifty five thousand three hundred forty five

3. sixty six thousand six hundred

4. THIRTY thousand three hundred one

Discussion

2062.	How many solutions does this pair of equation x=0 and y=-7 has?
Answer» Answer: Given X = 0 and y = -7 Y l - I X ________________X (0) l l _______l__________ l (-7 ) Y parallel line { no solution} INTERSECTING line { unique solution} Coincident line { infinite many SOLUTIONS } hope you like it

2062.

How many solutions does this pair of equation x=0 and y=-7 has?

Answer»

Answer:

Given X = 0 and y = -7

Y

l

- I

X ________________X

(0) l

l

_______l__________

l (-7 )

Y

parallel line { no solution}
INTERSECTING line { unique solution}
Coincident line { infinite many SOLUTIONS }

hope you like it

Discussion

2063.	Give answer the following question
Answer» ANSWER: 0 is the answer Step-by-step EXPLANATION: i THINK helpfull for you MARK me has BRAINLIST

2063.

Give answer the following question

Answer»

ANSWER:

0 is the answer

Step-by-step EXPLANATION:

i THINK helpfull for you

MARK me has BRAINLIST

Discussion

2064.	The value of y =b². x/a+y/b=a+b. find the value of x is a² solve this
Answer» ✧═════════════•❁❀❁•══════════════✧ $\huge\color{Pink}\boxed{\colorbox{Black}{❥Mysteryboy01}}$ ✧═════════════•❁❀❁•══════════════✧ $\huge\color{lime}\boxed{\colorbox{black}{⭐God Bless U⭐}}$ $\huge \pink{U} \red {are} \green{A} \blue {w} \orange {e} \pink {so} \red {m}\blue {e}$ $\huge\star\underline{\mathtt\orange{❥Good} \mathfrak\blue{Mo }\mathfrak\blue{r} \mathbb\purple{ n}\mathtt\orange{in} \mathbb\pink{g}}\star\:$ $\huge\star\huge{ \pink{\bold {\underline {\underline {\red {Great Day }}}}}} \star$ $\huge\blue\bigstar\pink{Be Safe Always }$ $\huge\fbox \red{✔Que} {\colorbox{crimson}{est}}\fbox\red{ion✔}$ The QUESTION is GIVE below $\huge\color{Red}\boxed{\colorbox{black}{♡<klux>ANSWER</klux> ♡}}$ The Answer is in ATTACHMENT $\huge\color{cyan}\boxed{\colorbox{black}{Mark as Brainlist ❤}}$

2064.

The value of y =b². x/a+y/b=a+b. find the value of x is a² solve this

Answer»

✧═════════════•❁❀❁•══════════════✧ $\huge\color{Pink}\boxed{\colorbox{Black}{❥Mysteryboy01}}$

✧═════════════•❁❀❁•══════════════✧

$\huge\color{lime}\boxed{\colorbox{black}{⭐God Bless U⭐}}$

$\huge \pink{U} \red {are} \green{A} \blue {w} \orange {e} \pink {so} \red {m}\blue {e}$

$\huge\star\underline{\mathtt\orange{❥Good} \mathfrak\blue{Mo }\mathfrak\blue{r} \mathbb\purple{ n}\mathtt\orange{in} \mathbb\pink{g}}\star\:$

$\huge\star\huge{ \pink{\bold {\underline {\underline {\red {Great Day }}}}}} \star$

$\huge\blue\bigstar\pink{Be Safe Always }$

$\huge\fbox \red{✔Que} {\colorbox{crimson}{est}}\fbox\red{ion✔}$

The QUESTION is GIVE below

$\huge\color{Red}\boxed{\colorbox{black}{♡<klux>ANSWER</klux> ♡}}$

The Answer is in ATTACHMENT

$\huge\color{cyan}\boxed{\colorbox{black}{Mark as Brainlist ❤}}$

Discussion

2065.	prove that tan theta/1- cot theta + cot theta/1- tan theta = 1+ sec theta cosec theta = 1+ tan theta+ cot theta
Answer» ANSWER: PLEASE MARK me as BRAINLIEST

2065.

prove that tan theta/1- cot theta + cot theta/1- tan theta = 1+ sec theta cosec theta = 1+ tan theta+ cot theta

Answer»

ANSWER:

PLEASE MARK me as BRAINLIEST

Discussion

2066.	Write the following number in words 24,683
Answer» Answer: TWENTY FOUR thousand SIX HUNDRED EIGHTY three

2066.

Write the following number in words 24,683

Answer»

Answer:

TWENTY FOUR thousand SIX HUNDRED EIGHTY three

Discussion

2067.	Simplify by rationalizing each of the denominator - 1/3√2-2√3
Answer» Step-by-step explanation: RATIONALISE the DENOMINATOR of 1/√3+√2 and hence evaluate by TAKING √2 = 1.414 and √3 = 1.732,up to THREE places of decimal.

2067.

Simplify by rationalizing each of the denominator - 1/3√2-2√3

Answer»

Step-by-step explanation:

RATIONALISE the DENOMINATOR of 1/√3+√2 and hence evaluate by TAKING √2 = 1.414 and √3 = 1.732,up to THREE places of decimal.

Discussion

2068.	Calculate the following data the linear regression of Y on X and X of on Y ..X 1 2 3 4 5 Y 2 5 3 8 7
Answer» ANSWER: YON X and x of on x Step-by-step EXPLANATION:

2068.

Calculate the following data the linear regression of Y on X and X of on Y ..X 1 2 3 4 5 Y 2 5 3 8 7

Answer»

ANSWER:

YON X and x of on x

Step-by-step EXPLANATION:

Discussion

2069.	A solid cube of side 3 centimetres is painted red on the top and bottom faces. The remaining faces are painted blue. It is then cut into 27 small cubes.1, How many small cubes will have one facered and one face blue ?2, How many small cubes will have no facepainted ?3, How many small cubes will have two facesblue and one face red ?4, How many small cubes will have only oneface painted blue ?
Answer» Answer: A solid cube of side 3 centimetres is painted red on the top and BOTTOM faces. The remaining faces are painted BLUE. It is then cut into 27 small cubes. 1, How many small cubes will have one face red and one face blue ? 2, How many small cubes will have no face painted ? 3, How many small cubes will have TWO faces blue and one face red ? 4, How many small cubes will have only one face painted blue ?

2069.

A solid cube of side 3 centimetres is painted red on the top and bottom faces. The remaining faces are painted blue. It is then cut into 27 small cubes.1, How many small cubes will have one facered and one face blue ?2, How many small cubes will have no facepainted ?3, How many small cubes will have two facesblue and one face red ?4, How many small cubes will have only oneface painted blue ?

Answer»

Answer:

A solid cube of side 3 centimetres is painted red on the top and BOTTOM faces. The remaining faces are painted BLUE. It is then cut into 27 small cubes.

1, How many small cubes will have one face

red and one face blue ?

2, How many small cubes will have no face

painted ?

3, How many small cubes will have TWO faces

blue and one face red ?

4, How many small cubes will have only one

face painted blue ?

Discussion

2070.	Which of the following will not change when the sphere is melted and recast in the wire
Answer» Step-by-step EXPLANATION: BRO GIVE the options. Your question is incomplete

2070.

Which of the following will not change when the sphere is melted and recast in the wire

Answer»

Step-by-step EXPLANATION:

BRO GIVE the options.

Your question is incomplete

Discussion

2071.	An object which is thrown or projected into the air, subject to only the acceleration of gravity iscalled a projectile, and its path is called its trajectory. This curved path was shown by Galileo tobe a parabola. Parabola is represented by a polynomial. If the polynomial to represent thedistance covered is Find the height of projectile 4 seconds after it is launched
Answer» Answer: An object which is thrown or PROJECTED into the air, subject to only the acceleration of gravity is called a projectile, and its path is called its trajectory. This curved path was shown by Galileo to be a PARABOLA. Parabola is represented by a POLYNOMIAL. Step-by-step explanation: An object which is thrown or projected into the air, subject to only the acceleration of gravity is called a projectile, and its path is called its trajectory. This curved path was shown by Galileo to be a parabola. Parabola is represented by a polynomial. If the polynomial to represent the distance covered is p(t) = -57 + 4t + 1.2 i) Find the height of projectile 4 seconds after it is launched. a) 80.2 m b) 81.2 m c) 81.8 m d) 84 m I hope my answer helped you Please mark me as brainliest

2071.

An object which is thrown or projected into the air, subject to only the acceleration of gravity iscalled a projectile, and its path is called its trajectory. This curved path was shown by Galileo tobe a parabola. Parabola is represented by a polynomial. If the polynomial to represent thedistance covered is Find the height of projectile 4 seconds after it is launched

Answer»

Answer:

An object which is thrown or PROJECTED into the air, subject to only the acceleration of gravity is called a projectile, and its path is called its trajectory. This curved path was shown by Galileo to be a PARABOLA. Parabola is represented by a POLYNOMIAL.

Step-by-step explanation:

An object which is thrown or projected into the air, subject to only the acceleration of gravity is called a

projectile, and its path is called its trajectory. This curved path was shown by Galileo to be a parabola.

Parabola is represented by a polynomial. If the polynomial to represent the distance covered is

p(t) = -57 + 4t + 1.2

i) Find the height of projectile 4 seconds after it is launched.

a) 80.2 m

b) 81.2 m

c) 81.8 m

d) 84 m

I hope my answer helped you

Please mark me as brainliest

Discussion

2072.	In chapter , Cartesian planeThe coordinates of origin are 0,0 .why ?hello !how are you all ?
Answer» ANSWER: HII Mate Step-by-step EXPLANATION: I'm So GOOD Today What's About UH??

2072.

In chapter , Cartesian planeThe coordinates of origin are 0,0 .why ?hello !how are you all ?

Answer»

ANSWER:

HII Mate

Step-by-step EXPLANATION:

I'm So GOOD Today

What's About UH??

Discussion

2073.	5/9(27/4+45/25) solve
Answer» Step-by-step EXPLANATION: it's EASY itself U jzt SIMPLIFY and TRY it

2073.

5/9(27/4+45/25) solve

Answer»

Step-by-step EXPLANATION:

it's EASY itself U jzt SIMPLIFY and TRY it

Discussion

2074.	Find the LCM of the following numbers using common division method. a. 204, 272, 408
Answer» Answer: 816 Step-by-step explanation: 204 = 22 • 3 • 17 272 = 24 • 17 408 = 23 • 3 • 17

2074.

Find the LCM of the following numbers using common division method. a. 204, 272, 408

Answer»

Answer:

816

Step-by-step explanation:

204 = 22 • 3 • 17

272 = 24 • 17

408 = 23 • 3 • 17

Discussion

2075.	2,4,6,8 in set builder form
Answer» Answer: Step-by-step explanation: Set BUILDER form: Set-builder notation is a notation for describing a set by INDICATING the properties that its members MUST SATISFY. C={2,4,6,8} C={2×1,2×2,2×3,2×4} thus set builder form is: {x:x=2n,n∈N} is your answer

2075.

2,4,6,8 in set builder form

Answer»

Answer:

Step-by-step explanation:

Set BUILDER form:

Set-builder notation is a notation for describing a set by INDICATING the properties that its members MUST SATISFY.

C={2,4,6,8}

C={2×1,2×2,2×3,2×4}

thus set builder form is:

{x:x=2n,n∈N} is your answer

Discussion

2076.	Find the value of a xV7x+14x + 210 = V 294
Answer» Step-by-step EXPLANATION: SUBSCRIBE my yt channel (. CHOOSY memes .) whosoever will do i will FOLLOW and GIVE them thanks

2076.

Find the value of a xV7x+14x + 210 = V 294

Answer»

Step-by-step EXPLANATION:

SUBSCRIBE my yt channel (. CHOOSY memes .) whosoever will do i will FOLLOW and GIVE them thanks

Discussion

2077.	200logs are stacked in the following manner . 20logs in the bottom row,19 in the next row ,18 in the row next to it and so on In how many rows are the 200 logs placed and how many logs are in the top row
Answer» Answer: It is an AP such that a=20 & d=−1 S n =200 ⇒200= 2 n [2(20)+(n−1)(−1)] ⇒400=n[40+1−n] ⇒n 2 −41n+400=0 ⇒n 2 −25n−16n+400=0 ⇒(n−25)(n−16)=0 So n=16 or n=25 T 16 =a+15d=20−15=5 T 25 =a+24d=20−24=−4 Since T 25 is not possible. ∴ n=16 & 5 logs are PLACED in the TOP row. solution

2077.

200logs are stacked in the following manner . 20logs in the bottom row,19 in the next row ,18 in the row next to it and so on In how many rows are the 200 logs placed and how many logs are in the top row

Answer»

Answer:

It is an AP such that a=20 & d=−1

S

n

=200

⇒200=

2

n

[2(20)+(n−1)(−1)]

⇒400=n[40+1−n]

⇒n

2

−41n+400=0

⇒n

2

−25n−16n+400=0

⇒(n−25)(n−16)=0

So n=16 or n=25

T

16

=a+15d=20−15=5

T

25

=a+24d=20−24=−4

Since T

25

is not possible.

∴ n=16 & 5 logs are PLACED in the TOP row.

solution

Discussion

2078.	Find the difference between smallest 5 digit number and greatest 4 digit number
Answer» Answer: 5 DIGIT SMALLEST number = 10000 4 digit GREATEST number =9999 Difference = 10000 - 9999 = 1

2078.

Find the difference between smallest 5 digit number and greatest 4 digit number

Answer»

Answer:

5 DIGIT SMALLEST number = 10000

4 digit GREATEST number =9999

Difference = 10000 - 9999 = 1

Discussion

2079.	. Which of the following arequadratic equations ? (i) x² - 6x-4 = 0(ii) 3x² - 7x-2=0(iii) x² - 6x²+2x-1=0(iv) 7x = 2x²(v) x² + 1 = 2 (x=0)Example 3. Which of the following ar
Answer» Answer: 1x2hshdhgdtsywihdhgsjdoosodhdggxtzisu

2079.

. Which of the following arequadratic equations ? (i) x² - 6x-4 = 0(ii) 3x² - 7x-2=0(iii) x² - 6x²+2x-1=0(iv) 7x = 2x²(v) x² + 1 = 2 (x=0)Example 3. Which of the following ar

Answer»

Answer:

1x2hshdhgdtsywihdhgsjdoosodhdggxtzisu

Discussion

2080.	14×___=____×___6+7 how to it.
Answer» ANSWER: it ISCA jcyvjiigcfdxftcfhvfxddz Step-by-step EXPLANATION: vvcgcffcffcfghjiuggfgggvbhjjbbvfffxfffffvgygggg

2080.

14×_=×_6+7 how to it.

Answer»

ANSWER:

it ISCA jcyvjiigcfdxftcfhvfxddz

Step-by-step EXPLANATION:

vvcgcffcffcfghjiuggfgggvbhjjbbvfffxfffffvgygggg

Discussion

2081.	Triangle ABC is equilateral of side 24 cm. A circle is drawn on BC as diameter. Find the length of arc of the circle included within the triangle
Answer» Answer: Triangle ABC is EQUILATERAL of SIDE 24 CM. A circle is drawn on BC as diameter. Find the LENGTH of arc of the circle included WITHIN the triangle

2081.

Triangle ABC is equilateral of side 24 cm. A circle is drawn on BC as diameter. Find the length of arc of the circle included within the triangle

Answer»

Answer:

Triangle ABC is EQUILATERAL of SIDE 24 CM. A circle is drawn on BC as diameter. Find the LENGTH of arc of the circle included WITHIN the triangle

Discussion

2082.	If you add a reflex angle and an obstuse angle then what should be the result
Answer» ANSWER: ACUTE ANGLE Acute angle

2082.

If you add a reflex angle and an obstuse angle then what should be the result

Answer»

ANSWER: ACUTE ANGLE

Acute angle

Discussion

2083.	Which angel is necessary for a right angled triangle?
Answer» ANSWER: r65r t6cvt6v7y7vy 7G 7g7 gu g7g 7g 7g 7g7 G7 GUY 7y y

2083.

Which angel is necessary for a right angled triangle?

Answer»

ANSWER:

r65r t6cvt6v7y7vy 7G 7g7 gu g7g 7g 7g 7g7 G7 GUY 7y y

Discussion

2084.	6. simplify the following: B) 564.187 - 65.79 + 902.231 step by step.
Answer» ooookkkkkkkkkkkkkkkkkk

Discussion

2085.	Question No. 20Every group is not isomorphic to asubgroup of A(S) for someappropriate S.AnswerA.TrueB.False
Answer» ANSWER: false Step-by-step EXPLANATION: islandलुुहदवकनतवतवचपदकनचलचरकलकललससससससससस

2085.

Question No. 20Every group is not isomorphic to asubgroup of A(S) for someappropriate S.AnswerA.TrueB.False

Answer»

ANSWER:

false

Step-by-step EXPLANATION:

islandलुुहदवकनतवतवचपदकनचलचरकलकललससससससससस

Discussion

2086.	A=(2, 3, 4, 7,6,), B=6,4,7,9,10) find A-B, B-A, ANB, AUB
Answer» I don't KNOW the ANSWER PLEASE MARK me as a BRAINLIST

2086.

A=(2, 3, 4, 7,6,), B=6,4,7,9,10) find A-B, B-A, ANB, AUB

Answer»

I don't KNOW the ANSWER

PLEASE MARK me as a BRAINLIST

Discussion

2087.	Find the greatest values of sin (x − π /3 ) sin ( π/6 + x) and also find the corresponding value of x for which it is greatest, where x ∈ [π, 3π /2 ].
Answer» GIVEN : SIN (x − π /3 ) sin ( π/6 + x) To Find : greatest values corresponding VALUE of x for which it is greatest, where x ∈ [π/2, 3π /2 ]. Solution: f(x) = sin (x − π /3 ) sin ( π/6 + x) f'(x) = sin (x − π /3) Cos ( π/6 + x) + cos (x − π /3 ) sin ( π/6 + x) = Sin(x - π /3 + π/6 + x ) = Sin( 2X - π/6) f'(x) = 0 Sin( 2x - π/6) = 0 => x = π/12 , 7π/12 , 13π/12 , 19π/12 7π/12 , 13π/12 ∈ [π/2, 3π /2 ] f''(x) = Cos ( 2x - π/6) x = 7π/12 f''(x) is -ve Hence max value at x = 7π/12 f(7π/12) = sin (7π/12 − π /3 ) sin ( π/6 + 7π/12) = sin( 3π/12) sin (9π/12) = sin( π/4) sin (3π/4) = (1/√2) (1/√2) = 1/2 Max value = 1/2 at x = 7π/12 if Question is x ∈ ∈ [π , 3π /2 ] then at 3π /2 is max value sin (3π/2 − π /3 ) sin ( π/6 + 3π/2) = sin( 7π/6)sin(5π/3) = √3/4 Learn More: find the local maxima or minima of the function: f(x)= sinx + cosx ... brainly.in/question/21125629 examine the maxima and minima of the function f(x)=2x³-21x²+36x ... brainly.in/question/1781825

2087.

Find the greatest values of sin (x − π /3 ) sin ( π/6 + x) and also find the corresponding value of x for which it is greatest, where x ∈ [π, 3π /2 ].

Answer»

GIVEN :

SIN (x − π /3 ) sin ( π/6 + x)

To Find : greatest values

corresponding VALUE of x for which it is greatest, where x ∈ [π/2, 3π /2 ].

Solution:

f(x) = sin (x − π /3 ) sin ( π/6 + x)

f'(x) = sin (x − π /3) Cos ( π/6 + x) + cos (x − π /3 ) sin ( π/6 + x)

= Sin(x - π /3 + π/6 + x )

= Sin( 2X - π/6)

f'(x) = 0

Sin( 2x - π/6) = 0

=> x = π/12 , 7π/12 , 13π/12 , 19π/12

7π/12 , 13π/12 ∈ [π/2, 3π /2 ]

f''(x) = Cos ( 2x - π/6)

x = 7π/12 f''(x) is -ve

Hence max value at x = 7π/12

f(7π/12) = sin (7π/12 − π /3 ) sin ( π/6 + 7π/12)

= sin( 3π/12) sin (9π/12)

= sin( π/4) sin (3π/4)

= (1/√2) (1/√2)

= 1/2

Max value = 1/2 at x = 7π/12

if Question is x ∈ ∈ [π , 3π /2 ]

then at 3π /2 is max value

sin (3π/2 − π /3 ) sin ( π/6 + 3π/2)

= sin( 7π/6)sin(5π/3)

= √3/4

Learn More:

find the local maxima or minima of the function: f(x)= sinx + cosx ...

brainly.in/question/21125629

examine the maxima and minima of the function f(x)=2x³-21x²+36x ...

brainly.in/question/1781825

Discussion

2088.	Discount=-----------------
Answer» DISCOUNT= Cost price-Selling price. It's a very easy formula you can learn it very easily You have to just put the VALUES for cost price and selling price. Have a nice DAY

2088.

Discount=-----------------

Answer»

DISCOUNT= Cost price-Selling price.

It's a very easy formula you can learn it very easily

You have to just put the VALUES for cost price and selling price.

Have a nice DAY

Discussion

2089.	Expand (2x+3)² using suitable identity.
Answer» Step-by-step EXPLANATION: HOPE my ANSWER will help Mark me

2089.

Expand (2x+3)² using suitable identity.

Answer»

Step-by-step EXPLANATION:

HOPE my ANSWER will help

Mark me

Discussion

2090.	Find the pair of integers whose product is smaller than both the integers
Answer» ANSWER: was XMAS HUSSAIN is hella

2090.

Find the pair of integers whose product is smaller than both the integers

Answer»

ANSWER:

was XMAS HUSSAIN is hella

Discussion

2091.	In the figure ABCD is a rectangle.A=12sq. cmWhat is the measure of ‹b?
Answer» Answer: HELLO sir I am not able to join the meeting TODAY at my END of the day

2091.

In the figure ABCD is a rectangle.A=12sq. cmWhat is the measure of ‹b?

Answer»

Answer:

HELLO sir I am not able to join the meeting TODAY at my END of the day

Discussion

2092.	If 'α' is a root of the equation 4x² = 2x - 1 then '4α³ - 3α' is :-a) rootb) not a rootc) sum of the rootsd) product of the roots
Answer» $\large\underline{\sf{Solution-}}$ Given that $\red{\rm :\longmapsto\: \alpha \:is \: the \: root \: of \: {4x}^{2} = 2x - <klux>1</klux>}$ can be rewritten as $\red{\rm :\longmapsto\: \alpha \:is \: the \: root \: of \: {4x}^{2} - 2x + 1 = 0}$ $\bf\implies \: {4\alpha \:}^{2} - 2\alpha \: + 1 = 0$ or $\bf\implies \: {4\alpha \:}^{2} = 2\alpha \: - 1 - - - (1)$ Now, Consider, $\red{\rm :\longmapsto\: {4\alpha \:}^{3} - 3 \alpha }$ can be rewritten as $\rm \: = \: \: \alpha \:( {4\alpha \:}^{2} ) - 3\alpha \:$ On Substituting the value from equation (1), we get $\rm \: = \: \: \alpha \:( 2\alpha \: - 1 ) - 3\alpha \:$ $\rm \: = \: \: {2\alpha \:}^{2} -\alpha \: - 3\alpha \:$ $\rm \: = \: \: {2\alpha \:}^{2} -4\alpha \:$ $\rm \: = \: \:\dfrac{1}{2} \bigg( {4\alpha \:}^{2} -8\alpha \: \bigg)$ On substituting the value from equation (1), we get $\rm \: = \: \:\dfrac{1}{2} \bigg( 2 \alpha - 1 -8\alpha \: \bigg)$ $\rm \: = \: \:\dfrac{1}{2} \bigg( - 1 -6\alpha \: \bigg)$ $\rm \: = \: \: - \: \dfrac{1}{2} - 3\alpha \:$ Now, It implies, $\red{\rm :\longmapsto\: {4\alpha \:}^{3} - 3 \alpha = - \: \dfrac{1}{2} - 3 \alpha }$ LET we CHECK, whether its a root or not. So, Let we substitute the above value in $\red{\rm :\longmapsto\: {4x}^{2} = 2x - 1}$ $\rm :\longmapsto\:4 {\bigg( - \dfrac{1}{2} - 3\alpha \:\bigg) }^{2} = 2\bigg( - \dfrac{1}{2} - 3 \alpha \bigg) - 1$ $\rm :\longmapsto\:4 {\bigg( - \dfrac{(1 + 6\alpha \:)}{2} \:\bigg) }^{2} = 2\bigg( - \dfrac{1 + 6\alpha \:}{2} \bigg) - 1$ $\red{\rm :\longmapsto\: {(1 + 6\alpha \:)}^{2} = - (1 + 6\alpha \:) - 1}$ $\rm :\longmapsto\:1 + {36\alpha \:}^{2} + 12\alpha \: = - 1 - 6\alpha \: - 1$ $\rm :\longmapsto\: {36\alpha \:}^{2} = - 3 - 18\alpha$ $\rm :\longmapsto\: {12\alpha \:}^{2} = - 1 - 6\alpha$ $\rm :\longmapsto\: 3 {(4\alpha \:}^{2}) = - 1 - 6\alpha$ $\rm :\longmapsto\: 3 (2 \alpha - 1) = - 1 - 6\alpha$ $\rm :\longmapsto\: 6 \alpha -3 = - 1 - 6\alpha$ $\bf\implies \: {4\alpha \:}^{3} - 3\alpha \: \: is \: not \: the \: root \: of \: given \: equation.$ Now, Let we check its SUM of the roots. We know, $\boxed{\red{\sf Sum\ of\ the\ zeroes=\frac{-coefficient\ of\ x}{coefficient\ of\ x^{2}}}}$ $\red{\rm :\longmapsto\:\alpha \: - \dfrac{1}{2} - 3\alpha \: = - \dfrac{( - 2)}{4}}$ $\red{\rm :\longmapsto\: \: - \dfrac{1}{2} - 2\alpha \: = \dfrac{1}{2}}$ which is not true. Now, Check the PRODUCT of the roots We know, $\boxed{\red{\sf Product\ of\ the\ zeroes=\frac{Constant}{coefficient\ of\ x^{2}}}}$ $\red{\rm :\longmapsto\:\alpha \: \times \bigg( - \dfrac{1}{2} - 3 \alpha \bigg) = \dfrac{1}{4}}$ Which is not true Hence, Option (b) is correct.

2092.

If 'α' is a root of the equation 4x² = 2x - 1 then '4α³ - 3α' is :-a) rootb) not a rootc) sum of the rootsd) product of the roots

Answer»

$\large\underline{\sf{Solution-}}$

Given that

$\red{\rm :\longmapsto\: \alpha \:is \: the \: root \: of \: {4x}^{2} = 2x - <klux>1</klux>}$

can be rewritten as

$\red{\rm :\longmapsto\: \alpha \:is \: the \: root \: of \: {4x}^{2} - 2x + 1 = 0}$

$\bf\implies \: {4\alpha \:}^{2} - 2\alpha \: + 1 = 0$

or

$\bf\implies \: {4\alpha \:}^{2} = 2\alpha \: - 1 - - - (1)$

Now,

Consider,

$\red{\rm :\longmapsto\: {4\alpha \:}^{3} - 3 \alpha }$

can be rewritten as

$\rm \: = \: \: \alpha \:( {4\alpha \:}^{2} ) - 3\alpha \:$

On Substituting the value from equation (1), we get

$\rm \: = \: \: \alpha \:( 2\alpha \: - 1 ) - 3\alpha \:$

$\rm \: = \: \: {2\alpha \:}^{2} -\alpha \: - 3\alpha \:$

$\rm \: = \: \: {2\alpha \:}^{2} -4\alpha \:$

$\rm \: = \: \:\dfrac{1}{2} \bigg( {4\alpha \:}^{2} -8\alpha \: \bigg)$

On substituting the value from equation (1), we get

$\rm \: = \: \:\dfrac{1}{2} \bigg( 2 \alpha - 1 -8\alpha \: \bigg)$

$\rm \: = \: \:\dfrac{1}{2} \bigg( - 1 -6\alpha \: \bigg)$

$\rm \: = \: \: - \: \dfrac{1}{2} - 3\alpha \:$

Now, It implies,

$\red{\rm :\longmapsto\: {4\alpha \:}^{3} - 3 \alpha = - \: \dfrac{1}{2} - 3 \alpha }$

LET we CHECK, whether its a root or not.

So, Let we substitute the above value in

$\red{\rm :\longmapsto\: {4x}^{2} = 2x - 1}$

$\rm :\longmapsto\:4 {\bigg( - \dfrac{1}{2} - 3\alpha \:\bigg) }^{2} = 2\bigg( - \dfrac{1}{2} - 3 \alpha \bigg) - 1$

$\rm :\longmapsto\:4 {\bigg( - \dfrac{(1 + 6\alpha \:)}{2} \:\bigg) }^{2} = 2\bigg( - \dfrac{1 + 6\alpha \:}{2} \bigg) - 1$

$\red{\rm :\longmapsto\: {(1 + 6\alpha \:)}^{2} = - (1 + 6\alpha \:) - 1}$

$\rm :\longmapsto\:1 + {36\alpha \:}^{2} + 12\alpha \: = - 1 - 6\alpha \: - 1$

$\rm :\longmapsto\: {36\alpha \:}^{2} = - 3 - 18\alpha$

$\rm :\longmapsto\: {12\alpha \:}^{2} = - 1 - 6\alpha$

$\rm :\longmapsto\: 3 {(4\alpha \:}^{2}) = - 1 - 6\alpha$

$\rm :\longmapsto\: 3 (2 \alpha - 1) = - 1 - 6\alpha$

$\rm :\longmapsto\: 6 \alpha -3 = - 1 - 6\alpha$

$\bf\implies \: {4\alpha \:}^{3} - 3\alpha \: \: is \: not \: the \: root \: of \: given \: equation.$

Now, Let we check its SUM of the roots.

We know,

$\boxed{\red{\sf Sum\ of\ the\ zeroes=\frac{-coefficient\ of\ x}{coefficient\ of\ x^{2}}}}$

$\red{\rm :\longmapsto\:\alpha \: - \dfrac{1}{2} - 3\alpha \: = - \dfrac{( - 2)}{4}}$

$\red{\rm :\longmapsto\: \: - \dfrac{1}{2} - 2\alpha \: = \dfrac{1}{2}}$

which is not true.

Now, Check the PRODUCT of the roots

We know,

$\boxed{\red{\sf Product\ of\ the\ zeroes=\frac{Constant}{coefficient\ of\ x^{2}}}}$

$\red{\rm :\longmapsto\:\alpha \: \times \bigg( - \dfrac{1}{2} - 3 \alpha \bigg) = \dfrac{1}{4}}$

Which is not true

Hence, Option (b) is correct.

Discussion

2093.	If u = sin^-1(x - y), x = 3t and y = 4t, then du/dt=
Answer» ANSWER: Klalalakejrhrhhzdtzdhdhdvfbnxjxjdhegezeussjshdzzwujshdggfrzehhehwisuuddhhwieirurzzrz Step-by-step EXPLANATION: SORRY for the in CORRECT answer

2093.

If u = sin^-1(x - y), x = 3t and y = 4t, then du/dt=

Answer»

ANSWER:

Klalalakejrhrhhzdtzdhdhdvfbnxjxjdhegezeussjshdzzwujshdggfrzehhehwisuuddhhwieirurzzrz

Step-by-step EXPLANATION:

SORRY for the in CORRECT answer

Discussion

2094.	Pls help me if you give the correct answer I will mark you brainliest but if you spam here you will be reported.This a question of problems related to different solid objects class X
Answer» Here is your ANSWER to the QUESTION.

Discussion

2095.	If the sum of second and tenth terms of aritmetic sequence is equal to , find sum of fourth, sixth and eight terms.
Answer» Answer: the sum of SECOND and TENTH terms of aritmetic sequence is EQUAL to , find sum of FOURTH, SIXTH and eight terms

2095.

If the sum of second and tenth terms of aritmetic sequence is equal to , find sum of fourth, sixth and eight terms.

Answer»

Answer:

the sum of SECOND and TENTH terms of aritmetic sequence is EQUAL to , find sum of FOURTH, SIXTH and eight terms

Discussion

2096.	For the samples of sizes 10 and 8respectively, the sum of the square of the deviations of the sample values from their sample means are 182 and 146. Test at 1% level whether this differences is significant.
Answer» ANSWER: yuihf folvhdhgm,f h,jtfig52533952184

2096.

For the samples of sizes 10 and 8respectively, the sum of the square of the deviations of the sample values from their sample means are 182 and 146. Test at 1% level whether this differences is significant.

Answer»

ANSWER:

yuihf folvhdhgm,f

h,jtfig52533952184

Discussion

2097.	9 class sum of a+b and b+a is
Answer» ANSWER: SUM of a+b is a^2+b^2 is answer

2097.

9 class sum of a+b and b+a is

Answer»

ANSWER:

SUM of a+b is a^2+b^2 is answer

Discussion

2098.	What should be added to 5/4 to get -1
Answer» ANSWER: $\frac{5}{4} + x = - 1$ $x = - 1 - \frac{5}{4}$ $x = - 2 \frac{1}{4}$ PLEASE MARK ME BRAINLIEST

2098.

What should be added to 5/4 to get -1

Answer»

ANSWER:

$\frac{5}{4} + x = - 1$

$x = - 1 - \frac{5}{4}$

$x = - 2 \frac{1}{4}$

PLEASE MARK ME BRAINLIEST

Discussion

2099.	एक कैन डू अ पीस ऑफ वर्क इन 8 डेज फाइल बी अलोन कैन डू इट इन 12 डेज एंड विल वर्क टुगेदर फॉर फ़्यू डेज एंड डे लीव 1/6 ऑफ द वर्क इन कंप्लीटेड एट वर्क वास कंप्लीटेड बाय सी टोटल 5400 टू बी पैड फॉर द एंड ठेर वर्क व्हाट वर्ड मीनिंग ऑफ ईच ऑफ देम
Answer» I don't KNOW the ANSWER PLEASE MARK me as a BRAINLIST

2099.

एक कैन डू अ पीस ऑफ वर्क इन 8 डेज फाइल बी अलोन कैन डू इट इन 12 डेज एंड विल वर्क टुगेदर फॉर फ़्यू डेज एंड डे लीव 1/6 ऑफ द वर्क इन कंप्लीटेड एट वर्क वास कंप्लीटेड बाय सी टोटल 5400 टू बी पैड फॉर द एंड ठेर वर्क व्हाट वर्ड मीनिंग ऑफ ईच ऑफ देम

Answer»

I don't KNOW the ANSWER

PLEASE MARK me as a BRAINLIST

Discussion

2100.	1. The probability of getting exactly 2 tails in 6 tosses of a fair coin i 1) 3/8 2) 1/4 3) 15/64 4) 49/64
Answer» 3) 15/64 is the CORRECT options mark be as BRAINLESSLY

2100.

1. The probability of getting exactly 2 tails in 6 tosses of a fair coin i 1) 3/8 2) 1/4 3) 15/64 4) 49/64

Answer»

3) 15/64 is the CORRECT options

mark be as BRAINLESSLY

Discussion

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