332354 + Interview Questions in Secondary School in Math Page 281 InterviewSolution

14001.	The amount of a sum of rs. 400 for 3 yrs at simple interest at 5% per annum is
Answer» <P>ANSWER: INTEREST = pRt/100 so interest = 60 amnt = p+ interest= 460 pls brainliest Step-by-step EXPLANATION:

14001.

The amount of a sum of rs. 400 for 3 yrs at simple interest at 5% per annum is

Answer»

<P>ANSWER:

INTEREST = p*R*t/100

so interest = 60

amnt = p+ interest= 460

pls brainliest

Step-by-step EXPLANATION:

Discussion

14002.	Find LCM and HCF of 120and 144
Answer» HOPE this HELPS you.....

14002.

Find LCM and HCF of 120and 144

Answer»

HOPE this HELPS you.....

Discussion

14003.	A very good morning mates....The 1st nd last question of the day......What Is Full Of Holes But Still Holds Water..?Don't spam nd no cheating....
Answer» ANSWER: sponge Step-by-step EXPLANATION:

14003.

A very good morning mates....The 1st nd last question of the day......What Is Full Of Holes But Still Holds Water..?Don't spam nd no cheating....

Answer»

ANSWER:

sponge

Step-by-step EXPLANATION:

Discussion

14004.	Write three rational numbers between root3 and root5
Answer» There fore RATIONAL number between √3 and √5 are 1.733, 1.734,1.735 Step-by-step EXPLANATION: i hope this ANSWER will HELP you...

14004.

Write three rational numbers between root3 and root5

Answer»

There fore RATIONAL number between √3 and √5 are 1.733, 1.734,1.735

Step-by-step EXPLANATION:

i hope this ANSWER will HELP you...

Discussion

14005.	Help me plzzzzzzz see the Q
Answer» $(\sqrt{2} x - y - 2 \sqrt{2) }^{2}$

14005.

Help me plzzzzzzz see the Q

Answer»

$(\sqrt{2} x - y - 2 \sqrt{2) }^{2}$

Discussion

14006.	35.52÷37÷5×(3.2×0.5)
Answer» ANSWER: your ANSWRE is : 15.7405405 plzz MARK it as BRAINLIST

14006.

35.52÷37÷5×(3.2×0.5)

Answer»

ANSWER:

your ANSWRE is :

15.7405405

plzz MARK it as BRAINLIST

Discussion

14007.	Q.2.In an A.P. a ,a +d, a+2d, a+3d,..., what is 'a' called 1common difference 2common ratio 3 base first term
Answer» Answer: 'a' US CALLED the FIRST term of the AP Step-by-step EXPLANATION: PLEASE MARK ME AS BRAINLIEST

14007.

Q.2.In an A.P. a ,a +d, a+2d, a+3d,..., what is 'a' called 1common difference 2common ratio 3 base first term

Answer»

Answer:

'a' US CALLED the FIRST term of the AP

Step-by-step EXPLANATION:

PLEASE MARK ME AS BRAINLIEST

Discussion

14008.	6 Principal Rs.6,000 for 12 years at 10% per annum. Find the following:iii) difference between CI and SI isA) Rs. 3B) Rs. 9C) Rs. 30D) Rs. 27
Answer» ANSWER: C is the answer for your QUESTION DEAR

14008.

6 Principal Rs.6,000 for 12 years at 10% per annum. Find the following:iii) difference between CI and SI isA) Rs. 3B) Rs. 9C) Rs. 30D) Rs. 27

Answer»

ANSWER:

C is the answer for your QUESTION DEAR

Discussion

14009.	What are the predecessor and successor of -1
Answer» SUCCESSOR = 0 PREDECESSOR = -2 HOPE it helped❤✌ keep smiling^ω^

14009.

What are the predecessor and successor of -1

Answer»

SUCCESSOR = 0

PREDECESSOR = -2

HOPE it helped❤✌

keep smiling^ω^

Discussion

14010.	15. If 25 pairs of shirts of equal size can be prepared from 60 metres of cloth, what length ofcloth is required for each pair of shirts ?
Answer» ↦Solution : - 25 pairs of shirt NEEDED cloth = 60 m 1 pair of shirt NEED cloth = ? Now , 60/25 2.4m [Answer] So , LENGTH of cloth REQUIRED for each pair of SHIRTS is 2.4m

14010.

15. If 25 pairs of shirts of equal size can be prepared from 60 metres of cloth, what length ofcloth is required for each pair of shirts ?

Answer»

↦Solution : -

25 pairs of shirt NEEDED cloth = 60 m

1 pair of shirt NEED cloth = ?

Now ,

60/25

2.4m [Answer]

So , LENGTH of cloth REQUIRED for each pair of SHIRTS is 2.4m

Discussion

14011.	Solve [D^4 + D^2+1] y=0
Answer» Answer: May your family RELATIVES and COMPANIONS maybe happy and SAFE from the Pandamic SITUATION and COVID-19 Please give complete question which you have any DOUBT my friend.. If find this helpful please follow me. thanks and Vote.. And Mark as BRAINLEIST..

14011.

Solve [D^4 + D^2+1] y=0

Answer»

Answer:

May your family RELATIVES and COMPANIONS maybe happy and SAFE from the Pandamic SITUATION and COVID-19

Please give complete question which you have any DOUBT my friend..

If find this helpful

please follow me.

thanks and Vote..

And Mark as BRAINLEIST..

Discussion

14012.	Q18) If both a and b are rational numbers, find the values of a and b in the following3+√7/3-√7=a+b√7
Answer» Answer: a+b√7=16/2+6√7/3 Step-by-step explanation: Do the RATIONALISATION of the the equation USING TWO identities

14012.

Q18) If both a and b are rational numbers, find the values of a and b in the following3+√7/3-√7=a+b√7

Answer»

Answer:

a+b√7=16/2+6√7/3

Step-by-step explanation:

Do the RATIONALISATION of the the equation USING TWO identities

Discussion

14013.	3; 5 হয়, তবে শকুরে ৩৩. :/উচ্চতা নির্ণয় করি। তবুটিতে কত লিটার বায়ু আছে হিসাব করে লিখি।দর্ঘ্য ৮ মিটার উচ্চতা ৮ মিটার এবং তির্যক উচ্চতা ৫ মিটার।করতে 5775 টাকা মূল্যের একটি ত্রিপল লাগে এবং এক বর্গমিটার ত্রিপলের মূল্য 25) টাকা হলে, তপু।
Answer» ANSWER: Aiden Step-by-step explanation: ZODIAC yudh fruitful G

14013.

3; 5 হয়, তবে শকুরে ৩৩. :/উচ্চতা নির্ণয় করি। তবুটিতে কত লিটার বায়ু আছে হিসাব করে লিখি।দর্ঘ্য ৮ মিটার উচ্চতা ৮ মিটার এবং তির্যক উচ্চতা ৫ মিটার।করতে 5775 টাকা মূল্যের একটি ত্রিপল লাগে এবং এক বর্গমিটার ত্রিপলের মূল্য 25) টাকা হলে, তপু।

Answer»

ANSWER:

Aiden

Step-by-step explanation:

ZODIAC yudh fruitful G

Discussion

14014.	Simplest form of 4√3√x^2
Answer» Answer: 2nd option Step-by-step EXPLANATION:

14014.

Simplest form of 4√3√x^2

Answer»

Answer:

2nd option

Step-by-step EXPLANATION:

Discussion

14015.	What is rounding off a hundred of number 8070
Answer» Answer: 8100 is the answer . because 8070 we will like on no. 8 then on no. 0then we couldn't find then to 7 it to s GREATER then no. 5 so this is the answer.

14015.

What is rounding off a hundred of number 8070

Answer»

Answer:

8100 is the answer . because 8070 we will like on no. 8 then on no. 0then we couldn't find then to 7 it to s GREATER then no. 5 so this is the answer.

Discussion

14016.	Write any four laws and exponent
Answer» Answer: HOLA! Here is your answer mate_____☺️ Step-by-step explanation: Laws of Exponents: MULTIPLYING Powers with same Base. Dividing Powers with the same Base. Power of a Power. Multiplying Powers with the same Exponents. Hope it HELPS you ____✌️✌️✌️____ Please mark it as a brainliest.

14016.

Write any four laws and exponent

Answer»

Answer:

HOLA!

Here is your answer mate_____☺️

Step-by-step explanation:

Laws of Exponents:

MULTIPLYING Powers with same Base.
Dividing Powers with the same Base.
Power of a Power.
Multiplying Powers with the same Exponents.

Hope it HELPS you

____✌️✌️✌️____

Please mark it as a brainliest.

Discussion

14017.	Solve [D^4+D^2+1]=0
Answer» ANSWER: d"4--!g663+-347888bbfxxfj

14017.

Solve [D^4+D^2+1]=0

Answer»

ANSWER:

d"4--!g663+-347888bbfxxfj

Discussion

14018.	If 6130x782is divisible by 11,Where x is a digit, What is the value of x?
Answer» Answer: May your family RELATIVES and companions maybe happy and safe from the Pandamic SITUATION and COVID-19 If find this helpful please follow me. thanks and Vote.. And MARK as BRAINLEIST..

14018.

If 6130x782is divisible by 11,Where x is a digit, What is the value of x?

Answer»

Answer:

May your family RELATIVES and companions maybe happy and safe from the Pandamic SITUATION and COVID-19

If find this helpful

please follow me.

thanks and Vote..

And MARK as BRAINLEIST..

Discussion

14019.	An electric current of 5 A is same as
Answer» Answer: An electric CURRENT of 5 A is same as 5 C / sec. Please mark as the BRAINLIEST Answer and GIVE THANKS to my all Answers.

14019.

An electric current of 5 A is same as

Answer»

Answer:

An electric CURRENT of 5 A is same as 5 C / sec.

Please mark as the BRAINLIEST Answer and GIVE THANKS to my all Answers.

Discussion

14020.	1)7834 find logaritham
Answer» ANSWER: jskfnxhcudjdbdhdhddbxbdbxbxbdhdhdhdhdhdydydhdhdhdhhdhdhdhdhhdhxbxbcc d d X bxbxbxbdhxhdueueu

14020.

1)7834 find logaritham

Answer»

ANSWER:

jskfnxhcudjdbdhdhddbxbdbxbxbdhdhdhdhdhdydydhdhdhdhhdhdhdhdhhdhxbxbcc d d X bxbxbxbdhxhdueueu

Discussion

14021.	24. If 2n = 64, then the value of n is:(a) 2(6) 4(c) 6
Answer» Answer: 2n =64 then , 64/2=n so,n=32

14021.

24. If 2n = 64, then the value of n is:(a) 2(6) 4(c) 6

Answer»

Answer:

2n =64

then ,

64/2=n

so,n=32

Discussion

14022.	Which motion of the earth is responsible for causing change of seasons
Answer» ANSWER: REVOLUTION of Earth AROUND the SUN because of Sun gravitational force

14022.

Which motion of the earth is responsible for causing change of seasons

Answer»

ANSWER:

REVOLUTION of Earth AROUND the SUN because of Sun gravitational force

Discussion

14023.	Simplify(C) (-20)+(-8)+(-2)-3
Answer» HOPE you UNDERSTAND

Discussion

14024.	5 Principal Rs.6,000 for 12 years at 10% per annum. Find the following:ii) compound interest isA) Rs. 903B) Rs. 909C) Rs. 900D) Rs. 930
Answer» Answer:375 Step-by-step explanation: LET the sum be Rs.x Amount after 3 years on Rs.x at 20% per annum when interest is compounded annually = P ( 1 + R 100 ) T = x ( 1 + 20 100 ) 3 = x ( 120 100 ) 3 = x ( 6 5 ) 3 Compound Interest = x ( 6 5 ) 3 − x = x [ ( 6 5 ) 3 − 1 ] = x [ 216 125 − 1 ] = 91 x 125 Simple Interest = PRT 100 = x × 20 × 3 100 = 3 x 5 =P(1+R100)T=x(1+20100)3=x(120100)3=x(65)3Compound Interest = x(65)3−x=x[(65)3−1]=x[216125−1]=91x125Simple Interest = PRT100=x×20×3100=3x5 Given that DIFFERENCE between compound interest and simple interest is Rs.48 91 x 125 − 3 x 5 = 48 91 x − 75 x 125 = 48 16 x 125 = 48 x = 48 × 125 16 = 3 × 125 = Rs. 375 91x125−3x5=4891x−75x125=4816x125=48x=48×12516=3×125=Rs. 375 i.e, the sum is Rs.375 -------------------------------------------------------------------------------------- Solution 2 --------------------------------------------------------------------------------------- The difference between compound interest and simple interest on Rs. P for 3 years at R% per annum = P ( R 100 ) 2 ( R 100 + 3 ) =P(R100)2(R100+3) [Read more ...] P ( R 100 ) 2 ( R 100 + 3 ) = 48 P ( 20 100 ) 2 ( 20 100 + 3 ) = 48 P ( 1 5 ) 2 ( 1 5 + 3 ) = 48 P ( 1 25 ) ( 16 5 ) = 48 P = 48 × 25 × 5 16 = 3 × 25 × 5 = 375

14024.

5 Principal Rs.6,000 for 12 years at 10% per annum. Find the following:ii) compound interest isA) Rs. 903B) Rs. 909C) Rs. 900D) Rs. 930

Answer»

Answer:375

Step-by-step explanation:

LET the sum be Rs.x

Amount after 3 years on Rs.x at 20% per annum when interest is compounded annually

=

P

(

1

+

R

100

)

T

=

x

(

1

+

20

100

)

3

=

x

(

120

100

)

3

=

x

(

6

5

)

3

Compound Interest =

x

(

6

5

)

3

−

x

=

x

[

(

6

5

)

3

−

1

]

=

x

[

216

125

−

1

]

=

91

x

125

Simple Interest =

PRT

100

=

x

×

20

×

3

100

=

3

x

5

=P(1+R100)T=x(1+20100)3=x(120100)3=x(65)3Compound Interest = x(65)3−x=x[(65)3−1]=x[216125−1]=91x125Simple Interest = PRT100=x×20×3100=3x5

Given that DIFFERENCE between compound interest and simple interest is Rs.48

91

x

125

−

3

x

5

=

48

91

x

−

75

x

125

=

48

16

x

125

=

48

x

=

48

×

125

16

=

3

×

125

=

Rs. 375

91x125−3x5=4891x−75x125=4816x125=48x=48×12516=3×125=Rs. 375

i.e, the sum is Rs.375

--------------------------------------------------------------------------------------

Solution 2

---------------------------------------------------------------------------------------

The difference between compound interest and simple interest on Rs. P for 3 years at R% per annum

=

P

(

R

100

)

2

(

R

100

+

3

)

=P(R100)2(R100+3)

[Read more ...]

P

(

R

100

)

2

(

R

100

+

3

)

=

48

P

(

20

100

)

2

(

20

100

+

3

)

=

48

P

(

1

5

)

2

(

1

5

+

3

)

=

48

P

(

1

25

)

(

16

5

)

=

48

P

=

48

×

25

×

5

16

=

3

×

25

×

5

=

375

Discussion

14025.	Sum of 7x,-3x,5x,-2x
Answer» Answer: 7x HOPE it HELPS U PLS FOLLOW me

14025.

Sum of 7x,-3x,5x,-2x

Answer»

Answer:

7x

HOPE it HELPS U

PLS FOLLOW me

Discussion

14026.	X+y=7 ; x-y=-1(simultaneously in graphical method)
Answer» ANSWER: X=3 and y=4 Step-by-step EXPLANATION: $x + y = 7$ $x - y = - 1$ Adding equations we GET: $x + y + x - y = 7 - 1$ Or $2x = 6$ $x = 3$ Put x in any of the equations: $3 + y = 7$ $y = 4$

14026.

X+y=7 ; x-y=-1(simultaneously in graphical method)

Answer»

ANSWER:

X=3 and y=4

Step-by-step EXPLANATION:

$x + y = 7$

$x - y = - 1$

Adding equations we GET:

$x + y + x - y = 7 - 1$

Or

$2x = 6$

$x = 3$

Put x in any of the equations:

$3 + y = 7$

$y = 4$

Discussion

14027.	Find the value of k, if X =3 & y=1 is a solution of the equation X+5y =k
Answer» $\huge\underline\mathbb{\red S\pink{O}\purple{L} \blue{UT} \orange{I}\green{ON :}}$ ★ Given that, x = 3 y = 1 Equation : x + 5y = k k = ? ➡ x + 5y = k ➡ 3 + 5(1) = k ➡ 3 + 5 = k ➡ k = 8 Hence, the VALUE of k is " 8 " . Step-by-step EXPLANATION: $# PLEASE MARK ME AS BRAINLIEST✌✌✌$

14027.

Find the value of k, if X =3 & y=1 is a solution of the equation X+5y =k

Answer»

$\huge\underline\mathbb{\red S\pink{O}\purple{L} \blue{UT} \orange{I}\green{ON :}}$

★ Given that,

x = 3
y = 1
Equation : x + 5y = k
k = ?

➡ x + 5y = k

➡ 3 + 5(1) = k

➡ 3 + 5 = k

➡ k = 8

Hence, the VALUE of k is " 8 " .

Step-by-step EXPLANATION:

$# PLEASE MARK ME AS BRAINLIEST✌✌✌$

Discussion

14028.	How to convert 5hg 6dag into dag
Answer» sry ,, I don't KNOW this QUESTION .... plz WRITE your class .... plz follow me

14028.

How to convert 5hg 6dag into dag

Answer»

sry ,, I don't KNOW this QUESTION .... plz WRITE your class ....

plz follow me

Discussion

14029.	The cost of Rs 17 / 5 meter of cloth is Rs 121 / 2 . Find the cost of cloth per meter
Answer» ANSWER: HOPE you GET your answer PLEASE FOLLOW me

14029.

The cost of Rs 17 / 5 meter of cloth is Rs 121 / 2 . Find the cost of cloth per meter

Answer»

ANSWER:

HOPE you GET your answer PLEASE FOLLOW me

Discussion

14030.	Draw The line segment joining the mid-points of two sides of are- parallel to the third side.
Answer» Step-by-step EXPLANATION: It is known as MID point theorem . It is very USEFUL in 9 as well as 10th standard. The line segment joining the mid points of two sides of a triangle is parallel to the third SIDE and also half of third side. It's converse is ALSO true. The line segment through the mid point of one side of a triangle parallel to one side bisects the third side

14030.

Draw The line segment joining the mid-points of two sides of are- parallel to the third side.

Answer»

Step-by-step EXPLANATION:

It is known as MID point theorem .

It is very USEFUL in 9 as well as 10th standard.

The line segment joining the mid points of two sides of a triangle is parallel to the third SIDE and also half of third side.

It's converse is ALSO true.

The line segment through the mid point of one side of a triangle parallel to one side bisects the third side

Discussion

14031.	How to convert 7kg 5g into kg
Answer» ANSWER: 7kg+5g =7kg+5/1000 kg =7kg+0.005kg =7.005kg

14031.

How to convert 7kg 5g into kg

Answer»

ANSWER:

7kg+5g

=7kg+5/1000 kg

=7kg+0.005kg

=7.005kg

Discussion

14032.	Multiplicative inverse of a negative rational number isa. A positive rational numberb. A negative rational numberc. can be positive or negative d. none of these
Answer» ANSWER: a NEGATIVE RATIONAL NUMBER

14032.

Multiplicative inverse of a negative rational number isa. A positive rational numberb. A negative rational numberc. can be positive or negative d. none of these

Answer»

ANSWER:

a NEGATIVE RATIONAL NUMBER

Discussion

14033.	If x - y =2 and 2/x+y=1/5then
Answer» $\text{[math]}$ x-y=2 ......EQ.1 2/x+y=1/5 i.e. x+y=10 ...eq.2 adding 1 and 2, x-y=2 x+y=10 ................ 2x=12 x=6 putting in eq. 2, 6-y=10 y= -4

14033.

If x - y =2 and 2/x+y=1/5then

Answer»

$\text{[math]}$

x-y=2 ......EQ.1

2/x+y=1/5

i.e. x+y=10 ...eq.2

adding 1 and 2,

x-y=2

x+y=10

................

2x=12

x=6

putting in eq. 2,

6-y=10

y= -4

Discussion

14034.	What is lcm of 2.5 , 0.5 and 1.5?
Answer» LCM IS EQUAL TO 7.5.......

Discussion

14035.	Plz help me fastly i will mark s brainliest
Answer»

Discussion

14036.	Represent 7/4 and -9/11 on the number line
Answer»

Discussion

14037.	{(4/3)-(569275)%}42/45[92*568]
Answer» ANSWER: just simplify this u GET urs answer perfectly OK FRIEND do you UNDERSTAND what I am SAYING ?OK bye

14037.

{(4/3)-(569275)%}42/45[92*568]

Answer»

ANSWER:

just simplify this u GET urs answer perfectly OK FRIEND do you UNDERSTAND what I am SAYING ?OK bye

Discussion

14038.	Let E be an event. Then find P( not E )
Answer» Answer: LET E be any event,then p(E)+p(NOTE)= Event of all other outcomes in the SAMPLE survey which are not in the favourable event is called COMPLEMENTARY event.

14038.

Let E be an event. Then find P( not E )

Answer»

Answer:

LET E be any event,then p(E)+p(NOTE)=

Event of all other outcomes in the SAMPLE survey which are not in the favourable event is called COMPLEMENTARY event.

Discussion

14039.	If the angles of elevation of the top of a tower from 2 points at the distance of 4m and 25m from the base of the tower and in the same line with it are complimentary, what is the hight of tower
Answer» Step-by-step explanation: *solution:- given* AB is TOWER p and q are the point of 4m and 25 m from fig PB=4m ,BQ=25m $angle \: of \: elevation \: from \: p \: be \: \alpha$ $and \: angle \: of \: elevation \: from \: q \: be \: \beta$ $given : \alpha + \beta = 90 \degree$ in triangle ABP $\tan( \alpha ) = \frac{ab}{bp}$ in triangle ABQ $\tan( \beta ) = \frac{ab}{bq}$ now we WRITE as $\beta = 90 - \alpha$ so put the value on tan(beta), we get $\tan(90 - \alpha ) = \frac{ab}{bq}$ now , we get $\cot( \alpha ) = \frac{ab}{bq}$ $\frac{1}{ \tan( \alpha ) } = \frac{ab}{bq}$ $\tan( \alpha ) = \frac{bq}{ab}$ now $\tan( \alpha ) = \frac{ab}{bp} = \tan( \alpha ) = \frac{bq}{ab}$ so we can write :- $\frac{ab}{bp} = \frac{bq}{ab}$ use cross multiplication AB²=BQ×BP AB²=25×4 AB²=100 AB=10m *height* of *tower* is 10 m

14039.

If the angles of elevation of the top of a tower from 2 points at the distance of 4m and 25m from the base of the tower and in the same line with it are complimentary, what is the hight of tower

Answer»

Step-by-step explanation:

solution:-

given AB is TOWER

p and q are the point of 4m and 25 m

from fig PB=4m ,BQ=25m

$angle \: of \: elevation \: from \: p \: be \: \alpha$

$and \: angle \: of \: elevation \: from \: q \: be \: \beta$

$given : \alpha + \beta = 90 \degree$

in triangle ABP

$\tan( \alpha ) = \frac{ab}{bp}$

in triangle ABQ

$\tan( \beta ) = \frac{ab}{bq}$

now we WRITE as

$\beta = 90 - \alpha$

so put the value on tan(beta), we get

$\tan(90 - \alpha ) = \frac{ab}{bq}$

now , we get

$\cot( \alpha ) = \frac{ab}{bq}$

$\frac{1}{ \tan( \alpha ) } = \frac{ab}{bq}$

$\tan( \alpha ) = \frac{bq}{ab}$

now

$\tan( \alpha ) = \frac{ab}{bp} = \tan( \alpha ) = \frac{bq}{ab}$

so we can write :-

$\frac{ab}{bp} = \frac{bq}{ab}$

use cross multiplication

AB²=BQ×BP

AB²=25×4

AB²=100

AB=10m

height of tower is 10 m

Discussion

14040.	X + 3y = 11. 3x - 4y = 7find linear pair equation by elimination method
Answer» ANSWER: Answer by #shinchanlover❤ ❤ ❤ hope this is helpful to you please FOLLOW me up and MARK my answer as brainlist ❤ ❤ ☺ ☺ ☺

14040.

X + 3y = 11. 3x - 4y = 7find linear pair equation by elimination method

Answer»

ANSWER:

Answer by #shinchanlover❤ ❤ ❤

hope this is helpful to you please FOLLOW me up and MARK my answer as brainlist ❤ ❤ ☺ ☺ ☺

Discussion

14041.	X=a/b+b/a,y=a/b-b/a,prove that x4+y4-2x2y2=16
Answer» ANSWER: REFER to the ATTACHMENT. Step-by-step EXPLANATION: $Hope it helps you...Please mark this answer as the brainliest and follow me.$

14041.

X=a/b+b/a,y=a/b-b/a,prove that x4+y4-2x2y2=16

Answer»

ANSWER:

REFER to the ATTACHMENT.

Step-by-step EXPLANATION:

$Hope it helps you...Please mark this answer as the brainliest and follow me.$

Discussion

14042.	Please solve this.I will mark you as brainliest
Answer» Answer: 2÷4=6.8 ×45_=7/6368=169×(25÷6) =24535

14042.

Please solve this.I will mark you as brainliest

Answer»

Answer:

2÷4=6.8 ×45_=7/6368=169×(25÷6) =24535

Discussion

14043.	The zeros of polynomial x^2- 3x - 4 are
Answer» ANSWER: x=1,-4 Step-by-step explanation: x^2-3x-4 => x^2-x+4x-4=0 => x(x-1)+4(x-1)=0 => (x-1)(x+4)=0 =>x= 1 or x= -4 I hope it helps you PLZ MARK me as brainliest

14043.

The zeros of polynomial x^2- 3x - 4 are

Answer»

ANSWER:

x=1,-4

Step-by-step explanation:

x^2-3x-4

=> x^2-x+4x-4=0

=> x(x-1)+4(x-1)=0

=> (x-1)(x+4)=0

=>x= 1 or x= -4

I hope it helps you

PLZ MARK me as brainliest

Discussion

14044.	Plz answer this plz because I am giving you 50 points plz answer the correct one
Answer» Answer: thx for FREE points your WRITING is too BAD so i cannot answer u i THINK no one can answer you

14044.

Plz answer this plz because I am giving you 50 points plz answer the correct one

Answer»

Answer:

thx for FREE points your WRITING is too BAD so i cannot answer u i THINK no one can answer you

Discussion

14045.	Solve [D^4+D^2+1]y=0
Answer» Answer: Step-by-step explanation: (D^4 + 1)y = 0 -(given) Now, from the auxillary equation F(m) = 0 , we get: (m^4 + 1)=0 m^4 + 2m^2 - 2m^2 + 1 = 0 (m^2 + 1)^2 - 2m^2 = 0 (m^2 + 1 - 2m^2) (m^2 + 1 + 2m^2) =0 -m^2 + 1 = 0 or 3m^2 + 1 =0 m^2 = 1 or m^2 = -1/3 m = -1,+1 or m= +_√-1/3 = 0 +- i√1/3 [ since i=√-1] Therefore, COMPLEMENTARY function(C.F.) would be: C1 e^-x + C2 e^x + C3 cos √1/3 x + C4 SIN √1/3 x ✓✓ ___________ii method __________ (D4 - 4D3 + 6D2 - 4D + 1)y = 0 (D + 1Q)4y = 0 Auxiliary equation is (m + 1)4 = 0 m = - 1, - 1, - 1, - 1 Therefore, y = C1 + C2xe-x + C3x2e-x + C4x3e-x ____________________________ Hope it helps you ❤

14045.

Solve [D^4+D^2+1]y=0

Answer»

Answer:

Step-by-step explanation:

(D^4 + 1)y = 0 -(given)

Now, from the auxillary equation F(m) = 0 , we get:

(m^4 + 1)=0

m^4 + 2m^2 - 2m^2 + 1 = 0

(m^2 + 1)^2 - 2m^2 = 0

(m^2 + 1 - 2m^2) (m^2 + 1 + 2m^2) =0

-m^2 + 1 = 0 or 3m^2 + 1 =0

m^2 = 1 or m^2 = -1/3

m = -1,+1 or m= +_√-1/3 = 0 +- i√1/3 [ since i=√-1]

Therefore, COMPLEMENTARY function(C.F.) would be:

C1 e^-x + C2 e^x + C3 cos √1/3 x + C4 SIN √1/3 x ✓✓

___________ii method __________

(D4 - 4D3 + 6D2 - 4D + 1)y = 0 (D + 1Q)4y = 0 Auxiliary equation is (m + 1)4 = 0 m = - 1, - 1, - 1, - 1 Therefore, y = C1 + C2xe-x + C3x2e-x + C4x3e-x

____________________________

Hope it helps you ❤

Discussion

14046.	Tell me all the reduced questions of all exercises of 4th chapter (maths) class tenth
Answer» ANSWER: do you WANT reduced CHAPTER of cbse or ICSE

14046.

Tell me all the reduced questions of all exercises of 4th chapter (maths) class tenth

Answer»

ANSWER:

do you WANT reduced CHAPTER of cbse or ICSE

Discussion

14047.	Ajith takes 7 hours if he travels 240 km by train and 120 km by taxi. But if he travels 120 km by train and 240 km by taxi he takes 1 hour more. Find the speed of the train and that of the taxi.
Answer» ANSWER: The TRAIN SPEED is 17.14km/h and TAXI speed is 30km/h

14047.

Ajith takes 7 hours if he travels 240 km by train and 120 km by taxi. But if he travels 120 km by train and 240 km by taxi he takes 1 hour more. Find the speed of the train and that of the taxi.

Answer»

ANSWER:

The TRAIN SPEED is 17.14km/h and TAXI speed is 30km/h

Discussion

14048.	The cost of a notebook is twice the cost of the pen .write a linear equation in two variables to represent this statement
Answer» Answer: X=2×y Step-by-step explanation: Note book COST = 2×cost of PEN cost of pen according to variable is y cost of note book according to variable is x. So, LINEAR equation is to be x=2×y.

14048.

The cost of a notebook is twice the cost of the pen .write a linear equation in two variables to represent this statement

Answer»

Answer:

X=2×y

Step-by-step explanation:

Note book COST = 2×cost of PEN

cost of pen according to variable is y

cost of note book according to variable is x.

So, LINEAR equation is to be x=2×y.

Discussion

14049.	Express -4/5 as a rational number with denominator 20
Answer» We have to MULTIPLY NUMERATOR and DENOMINATOR by 4 -44/54 = -16/20

14049.

Express -4/5 as a rational number with denominator 20

Answer»

We have to MULTIPLY NUMERATOR and DENOMINATOR by 4

-4*4/5*4

= -16/20

Discussion

14050.	IUPAC name of above question.
Answer» Answer: 50thanks + FOLLOW =INBOX MARK as BRAINLIST

14050.

IUPAC name of above question.

Answer»

Answer:

50thanks + FOLLOW =INBOX

MARK as BRAINLIST

Discussion

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