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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 33451. |
SinA 4/3 find other theronmetric ratio |
| Answer» I think the question is wrong coz hypotenuse can\'t be smaller than perpendicular or base | |
| 33452. |
Find a quadratic polynomial whose zeros are -3,2 |
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Answer» Let, Alpha= -3 & Bitta = 2 Sum of the zeros =(alpha + Bitta) = -3 + 2 = -1Product of the zeros = (alpha × Bitta) = -3 × 2 = -6So,the required quadratic polynomial is x^2 -(alpha + bitta)x +(alpha × bitta) x^2 -( -1 )x + ( -6 ) x^2 + x -6 alpha=-3 &bita= 2Alpha +bita= -3 + 2= -1Alpha*bita=-3*2=-6x2-( alpha+ bita)x + alpha* bita = x2 -(-1)x +6 =x2 +x +6 |
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| 33453. |
Syllabus of sa 1 and sa2 board exam session 2018-19 |
| Answer» Math | |
| 33454. |
3+2√5 is a irrational or rational |
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Answer» Irrational number Irrational no. Off course, it\'s irrational Irrational Irrational Irrational Irrational Irrational |
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| 33455. |
Solve for pand q. P+q =2pq and p-q =6pq |
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| 33456. |
What is real name of cot? |
| Answer» Cotangent | |
| 33457. |
Show 3 root 7 is an irrational no. |
| Answer» let us take on contrary that 3 root 7 is rational. then there exist two co prime numbers a and b such that 3root 7 = a/b=> root 7 = a / 7bnow LHS is an irrational no. whereas RHs is rationalthis contradiction has arised due to our wrong assumption in beginning therefore 3 root 7 is an irrational number | |
| 33458. |
Prove that if X and y are odd positive integers, then x2 +y2 is even but not divisible by 4? |
| Answer» x and y are odd integers. So they should be of the form x= 2m+1, y= 2n+1 for some integers m and n.x^2 + y^2 =(2m+1)^2 + (2n+1)^2=4m^2+4m +1+4n^2+4n+1=4m^2+4n^2+4m+4n+2=4(m^2+n^2+m+n) + 2Which is an even number but not divisible by 4. | |
| 33459. |
Prove that tanA +sinA ÷ tanA-sinA = secA+ 1÷secA-1 |
| Answer» (tanA+sinA)/(tanA-sinA)={(sinA/cosA) + sinA} / {(sinA/cosA) -sinA}=sinA{(1/cosA) + 1} / sinA{(1/cosA)- sinA}=(1/cosA + 1)/1/cosA - 1)=(secA+1)/(secA-1). | |
| 33460. |
Please send me maths lab manual activity of "Geometrical meaning of the zeroes of the polynomial". |
| Answer» Nice question | |
| 33461. |
Find the LCM and HCF of 625, 1125, 2125 using fundamental theorem of arithmetic |
| Answer» 625 = 5^41125 =3^2 × 5^32125= 5^3 × 17The required LCM =3^2×5^4×17 = 95625The required HCF =5^3=125 | |
| 33462. |
✓2x2+7x+5√2=0 |
| Answer» We have,\xa0{tex}\\sqrt2x^2 +7x +5\\sqrt2 =0{/tex}{tex}\\implies \\sqrt2x^2 +2x +5x+5\\sqrt2 =0{/tex}{tex}\\implies \\sqrt2x (x +\\sqrt2) + 5 (x + \\sqrt2) = 0{/tex}{tex}\\implies (\\sqrt2x+5) (x+\\sqrt2) =0{/tex}{tex}Either\\, \\sqrt2x+5 =0\\, or \\,x+\\sqrt2 =0{/tex}{tex}\\implies x = {-5 \\over \\sqrt2},\\, -\\sqrt2{/tex}{tex}\\therefore x = {-5 \\over \\sqrt2},\\, -\\sqrt2{/tex}\xa0are the required roots. | |
| 33463. |
How understand the math |
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Answer» Never take math as a big dodge or weight,always take it easy and play with math ,anytime u notice if u are playing with someone he also plays with u ofcourse he is your enemy or friend so if u play with math math will play with u and make itself easy to learn to u .......please take this point seriously u will become genius in math its my experience ..... By concentration and by ur mind.... Take it as a song |
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| 33464. |
How to learn the trigonomettic ratios |
| Answer» Only learn sinA, cosA and TanAThan u easily learn cosecA which is resiprocal of sinA, secA resiprocal of cosA and cotA resiprocal of tanA... | |
| 33465. |
verify the relationship b/w the zeroes and coefficients[3x square plus 4x -4] |
| Answer» p(x)=3x^2+4x-4 here a=3,b=4 and c=-4 ( by comparison with ax^2+bx+c) for x=0p(x)=o3x^2+4x-4=03x^2+6x-2x-4=03x(x+2)-2(x+2)=0(3x-2)(x+2)=0therefore x=2/3 or x=-2let,alpha=2/3beta=-2now, alpha+beta= -b/a 2/3-2=-4/3 -4/3=-4/3similarly,alpha x beta= c/a2/3 x -2 = -4/3-4/3 = -4/3hence verified | |
| 33466. |
Solve graphically the system of linear equation2x-y=4 , x-y |
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| 33467. |
In boards is their questions comes from OPTIONAL EXERCISES... |
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Answer» What It can come If it comes then, as they r not out of syllabus Is it true They given them just for kidding Then why they given it No |
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| 33468. |
Three consecutive vertices of a parellelogram are(-2,-1),(1,0) and (4,3). Find fourth vertices |
| Answer» Maybe( 1,2) | |
| 33469. |
Arithmetic progresino |
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| 33470. |
The sum of a natural number and its reciprocal is 65/8. Find the number. |
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Answer» How Number is 8 What Mahak |
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| 33471. |
The sum of a natural number and its reciprocal is 65÷8. Find the number. |
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Answer» How...? Required no. is8 |
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| 33472. |
Total surface area of cuboid |
| Answer» 2(l×b)+(b×h)+(l×h) | |
| 33473. |
Polynomial factorisation problems |
| Answer» Plz give the Q first | |
| 33474. |
For which value of p does the pair of a given below as unique solution.4x+py+=0 and 12x+2y+2=0 |
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Answer» P should not be equal to 2/3 Kindly check your question .It seems wrong |
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| 33475. |
1-cosA ÷sinA = sinA÷1+ cosA prove |
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| 33476. |
Find the hcf of 120 |
| Answer» How can a number has HCF? Highest common factor can always be exist between two or more numbers. | |
| 33477. |
In cha 3 graph question 2x+4y=10; 3x+6y=12 |
| Answer» Then what I doI can\'t draw on mobile ? | |
| 33478. |
My name is in frequency when mode is 67.Class mark frequency40 -50. |
| Answer» | |
| 33479. |
What is coordinate geometry |
| Answer» A geometry dealing with plane figure divided into 4 quadrants having two perpendicular lines namely x and y axis | |
| 33480. |
3x square -6x +2 |
| Answer» | |
| 33481. |
SinA sin(90-A)-cosAcos(90-A) |
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Answer» O SinA sin(90-A)- cosA cos)90_A)=SinA cosA-cosA sinA= 0 |
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| 33482. |
Show that the cube of any positive integer is of the form 4m+1 or4m+3 for some integer |
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| 33483. |
Prove under root 2 and under root 3 are irrational numbers |
| Answer» under root 3 is equal to a upon B और a and b are co prime under root 3 is equal to a upon B =3= ए स्क्वायर upon बी स्क्वायर=3b square = a square = 3 Mod a square =3 mod a = a=c for some integer c = a square = 9c square = 3b square = 9c square =b square =3c square =3mod b square =3mod b From 1and2 we observe that a and b have at least 3as comman factor. But this contraDicts the fact that a and b are coprime. This means that our assumption is not correct. Hence under root 3 is an irrational number | |
| 33484. |
Understanding graphical method of solving simultaneous linear equation |
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| 33485. |
Give two different examples of pair of similar figures and non - similar figures |
| Answer» Two different examples of a pair of (i) Similar figures : (a) Any 2 rectangles (b) Any 2 square(ii) Non - Similar figures : (a) A scalene and an equilateral triangle. (b) An equilateral triangle and a right angled triangle | |
| 33486. |
If Alfa,beta are zeroes of quadratic polynomial no-go(k+6)x+2(2k-1)find k if Alfa+beta=1/2 |
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| 33487. |
1/2p+1/3q=21/3p+1/2q=13/6solve using elimination method |
| Answer» P=1/2Q=1/3 | |
| 33488. |
The hour hand of a clock is 6 cm long.Find the area swept by it between 11:20am and 11:55 am. |
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| 33489. |
If cot theta =2x/√9-4x^2 ,then evaluate sin theta + cos theta & cosec theta -tan theta |
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| 33490. |
If the HCF of 408 and 1032 is expressible in the form 1032m - 402 × 5, find m. |
| Answer» Given integers are 408 and 1032 where 408 < 1032By applying Euclid’s division lemma, we get 1032 = 408 {tex}\\times{/tex}\xa02 + 216.Since the remainder ≠ 0, so apply division lemma again on divisor 408 and remainder 216, we get the relation as408 = 216 {tex}\\times{/tex}\xa01 + 192.Since the remainder ≠ 0, so apply division lemma again on divisor 216 and remainder 192216 = 192 {tex}\\times{/tex}\xa01 + 24.Since the remainder ≠ 0, so apply division lemma again on divisor 192 and remainder 24\xa0192 = 24 × 8 + 0.Now the remainder has become 0. Therefore, the H.C.F of 408 and 1032 = 24.Therefore,24 = 1032m - 408 {tex}\\times{/tex}\xa051032m = 24 + 408 {tex}\\times{/tex}\xa051032m = 24 + 20401032m = 2064 {tex}m = \\frac{{2064}}{{1032}}{/tex}Therefore, m = 2. | |
| 33491. |
If Sn=27n-7n²/2 be the sum to first n term of an a.p, then write the common difference of the a.p |
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| 33492. |
If Sn=n²+4n be the sum of first n term of an A.P,then write the 20th term of the A.P |
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| 33493. |
What is euclid\'s division algorithm? |
| Answer» Euclid\'s divison algorithm is Dividend = Divisor x Quotient + Remainder or a = b x q + r where, 0 < or = r < b | |
| 33494. |
What is the value of N in ax⅔+⅜-1 |
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| 33495. |
Under root1 minus cos A upon 1 plus cos A is equal to cosec Aminus cotA |
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| 33496. |
Find all the real zeros of the polynomial x^3-1 |
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Answer» But the degree of the polynomial is 3...so the polynomial must have 3 zeros X³-1X³=1X=³√1=1 Please someone answer it quickly.. |
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| 33497. |
What is the maximum and minimum value of sin |
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| 33498. |
If 3x+5 is a factor of the polynomial 6x3+16x2+px-5, then find the value of p. |
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| 33499. |
1chepter |
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Answer» Whats ur question or u have whole problem with 1 CHAPTER (NOT CHEPTER) It\'s not chepter its chapter. But what you want in it. |
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| 33500. |
Can we write with gel pen in board exam |
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Answer» Bro write with any PEN but ur handwriting must be NEAT AND CLEAN..(BALL PEN IS GOOD IF UR HANDWRITING IS BAD) No gel pen is not allowed in board exam Of course we can write with a gel pen Write if you want to fail No Yes I think no |
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