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.
| 9901. |
If the points (2,0), (0,1), (4,0) and (0,a) are concyclic then a= |
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Answer» If the points (2,0), (0,1), (4,0) and (0,a) are concyclic then a= |
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| 9902. |
Reduce the following equations into intercept form and find theirintercepts on the axes.(i) 3x+ 2y – 12 = 0 (ii) 4x – 3y = 6 (iii) 3y + 2 = 0. |
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Answer»
(i) 3x |
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| 9903. |
y= (√x+1÷√x)^2Differentiate |
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Answer» y= (√x+1÷√x)^2 Differentiate |
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| 9904. |
For what values of a and b if A = B, whereA=a+43b8-6, B=2a+2b2+28b2-5bDisclaimer: There is a misprint in the question, b2 − 5b should be written instead of b2 − 56. |
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Answer» For what values of a and b if A = B, where Disclaimer: There is a misprint in the question, b2 − 5b should be written instead of b2 − 56. |
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| 9905. |
The area bounded by the curve y=1x2 and its asymptote between the lines x=1 to x=3 is |
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Answer» The area bounded by the curve y=1x2 and its asymptote between the lines x=1 to x=3 is |
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| 9906. |
A tangent is drawn to the parabola y2=6x which is perpendicular to the line 2x+y=1. Which of the following points does NOT lie on it ? |
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Answer» A tangent is drawn to the parabola y2=6x which is perpendicular to the line 2x+y=1. Which of the following points does NOT lie on it ? |
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| 9907. |
The number of integers x satisfying −3x4+det⎡⎢⎣1xx21x2x41x3x6⎤⎥⎦=0 is equal to |
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Answer» The number of integers x satisfying |
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| 9908. |
Find the coordinates ofthe point where the line through (3, −4, −5) and (2,− 3, 1) crosses the plane 2x + y + z = 7). |
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Answer» Find the coordinates of |
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| 9909. |
Which of the following is a univariate polynomial? |
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Answer» Which of the following is a univariate polynomial? |
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| 9910. |
If P=⎡⎢⎣x 0 00 y 00 0 z⎤⎥⎦ and Q=⎡⎢⎣a 0 00 b 00 0 c⎤⎥⎦ then prove that PQ=⎡⎢⎣xa 0 00 yb 00 0 zc⎤⎥⎦=QP |
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Answer» If P=⎡⎢⎣x 0 00 y 00 0 z⎤⎥⎦ and Q=⎡⎢⎣a 0 00 b 00 0 c⎤⎥⎦ then prove that PQ=⎡⎢⎣xa 0 00 yb 00 0 zc⎤⎥⎦=QP |
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| 9911. |
If (3644)k is the term, independent of x, in the binomial expansion of (x4−12x2)12, then k is equal to |
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Answer» If (3644)k is the term, independent of x, in the binomial expansion of (x4−12x2)12, then k is equal to |
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| 9912. |
The value of ∫cot4x dx is |
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Answer» The value of ∫cot4x dx is |
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| 9913. |
30. If f(x)-0,x0-1, x>(0For what value (s) of a does lim fo) exists? |
| Answer» 30. If f(x)-0,x0-1, x>(0For what value (s) of a does lim fo) exists? | |
| 9914. |
25.Find the probability of having al least one boy in a family of 3 children |
| Answer» 25.Find the probability of having al least one boy in a family of 3 children | |
| 9915. |
z and w are non zero complex number and / z / = /w/ and arg( z ) +arg ( w ) = +pie therefore z = , where / / is denoted as modulus |
| Answer» z and w are non zero complex number and / z / = /w/ and arg( z ) +arg ( w ) = +pie therefore z = , where / / is denoted as modulus | |
| 9916. |
Let f:(−π2, π2)→R be given by f(x) = [log(sec x+tan x)]3. Then |
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Answer» Let f:(−π2, π2)→R be given by f(x) = [log(sec x+tan x)]3. Then |
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| 9917. |
The equation (y–1)=m(x–2) represents a family of lines passing through (2,1). But this equation does not include the line x–2=0, since the slope of the line is not defined. A line y=mx through (0,0) cuts the lines x+y=3 and x+y=5 at two distinct points A and B respectively. AB=d |
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Answer» The equation (y–1)=m(x–2) represents a family of lines passing through (2,1). But this equation does not include the line x–2=0, since the slope of the line is not defined. A line y=mx through (0,0) cuts the lines x+y=3 and x+y=5 at two distinct points A and B respectively. AB=d |
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| 9918. |
If \log2, \log(2^n-1) and \log(2^n+3) are in AP, then n = |
| Answer» If \log2, \log(2^n-1) and \log(2^n+3) are in AP, then n = | |
| 9919. |
If y=ex+sinx, then d2xdy2 is equal to |
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Answer» If y=ex+sinx, then d2xdy2 is equal to |
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| 9920. |
The distance moved by the particle in time t is given by x=t3−12t2+6t+8. At the instant when its acceleration is zero, then the velocity is |
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Answer» The distance moved by the particle in time t is given by x=t3−12t2+6t+8. At the instant when its acceleration is zero, then the velocity is |
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| 9921. |
If →a,→b,→c are non-zero vectors such that |→a|=|→b| and →a⋅(2→a+→b−→c)=→b⋅(→a+2→b+→c), then which of the following is/are true ? |
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Answer» If →a,→b,→c are non-zero vectors such that |→a|=|→b| and →a⋅(2→a+→b−→c)=→b⋅(→a+2→b+→c), then which of the following is/are true ? |
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| 9922. |
Consider function f(x)=⎧⎪⎨⎪⎩ax(x−1)+b,x<1x−1,1≤x≤3.px2+qx+2,x>3 If f(x) satisfies the following conditionsa)f(x) is continuous for all x.b)f′(1) does not exist.c)f′(x) is continuous at x=3. Then the value of p+q3+1 is |
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Answer» Consider function f(x)=⎧⎪⎨⎪⎩ax(x−1)+b,x<1x−1,1≤x≤3.px2+qx+2,x>3 If f(x) satisfies the following conditions a)f(x) is continuous for all x. b)f′(1) does not exist. c)f′(x) is continuous at x=3. Then the value of p+q3+1 is |
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| 9923. |
If one root of the quadratic equation 2x2+2x+k=0 is -13 then find the value of k. |
| Answer» If one root of the quadratic equation then find the value of k. | |
| 9924. |
The shape factor of the section shown in figure is2 |
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Answer» The shape factor of the section shown in figure is
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| 9925. |
There are two bags, one of which contains 5 black and 4 white balls while the other contains 3 black and 6 white balls. A die is thrown. If it shows up 1 or 3, a ball is taken from the first bag. But if it shows up any other number, a ball is chosen from the second bag. Find the probability of choosing a white ball. |
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Answer» There are two bags, one of which contains 5 black and 4 white balls while the other contains 3 black and 6 white balls. A die is thrown. If it shows up 1 or 3, a ball is taken from the first bag. But if it shows up any other number, a ball is chosen from the second bag. Find the probability of choosing a white ball. |
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| 9926. |
If the graph y=g(x) has a minimum point at (4,2), then minimum point of the graph y=g(x−5)−3 is |
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Answer» If the graph y=g(x) has a minimum point at (4,2), then minimum point of the graph y=g(x−5)−3 is |
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| 9927. |
If A={α,β,γ},B={1,2,3,4}, then the number of elements in set A×B×B is |
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Answer» If A={α,β,γ},B={1,2,3,4}, then the number of elements in set A×B×B is |
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| 9928. |
If →a=4^i−^j+^k and →b=2^i−2^j+^k, then find a unit vector parallel to the vector →a+→b |
| Answer» If →a=4^i−^j+^k and →b=2^i−2^j+^k, then find a unit vector parallel to the vector →a+→b | |
| 9929. |
In a hyperbola e = 94 and the distance between the directrices is 3. Then the length of Transverse axis is |
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Answer» In a hyperbola e = 94 and the distance between the directrices is 3. Then the length of Transverse axis is |
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| 9930. |
∫e(sinx−1x)(1+x cosx+1x)dx is |
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Answer» ∫e(sinx−1x)(1+x cosx+1x)dx is |
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| 9931. |
If α,β be roots x2+px+1=0 and γ,δ are the roots of x2+qx+1=0, then (a−γ)(β−γ)(α+δ)(β+δ) is |
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Answer» If α,β be roots x2+px+1=0 and γ,δ are the roots of x2+qx+1=0, then (a−γ)(β−γ)(α+δ)(β+δ) is |
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| 9932. |
If tan22∘+tan24∘+⋯+tan288∘=a, then the value of 89∘∑θ=1∘ sin4θ+cos4θsin2θ cos2θ is |
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Answer» If tan22∘+tan24∘+⋯+tan288∘=a, then the value of 89∘∑θ=1∘ sin4θ+cos4θsin2θ cos2θ is |
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| 9933. |
Using the fact that sin(A+B)=sinAcosB+cosAsinB and the differentiation, obtain the sum formula for cosines. |
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Answer» Using the fact that sin(A+B)=sinAcosB+cosAsinB and the differentiation, obtain the sum formula for cosines. |
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| 9934. |
The value of limn→∞n∑r=1n−rn2+r2 is |
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Answer» The value of limn→∞n∑r=1n−rn2+r2 is |
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| 9935. |
Two cubes have volumes in the ratio 1 : 64. The ratio of the area of a face of first cube to that of the other isa) 1 : 4b) 1 : 8c) 1 : 16d) 1 : 32 |
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Answer» Two cubes have volumes in the ratio 1 : 64. The ratio of the area of a face of first cube to that of the other is a) 1 : 4 b) 1 : 8 c) 1 : 16 d) 1 : 32 |
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| 9936. |
The total number of points of non-differentiability of f(x)=max{sin2x,cos2x,34} in [0,10π], is |
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Answer» The total number of points of non-differentiability of f(x)=max{sin2x,cos2x,34} in [0,10π], is |
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| 9937. |
Integrate the following functions w.r.t. x. ∫1cos(x+a) cos(x+b)dx. |
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Answer» Integrate the following functions w.r.t. x. ∫1cos(x+a) cos(x+b)dx. |
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| 9938. |
If f(x+y) = f(x) × f(y) where x,y belongs to R, find f(0) if f(0)>0? |
| Answer» If f(x+y) = f(x) × f(y) where x,y belongs to R, find f(0) if f(0)>0? | |
| 9939. |
If A=[2−3−41], then adj(3A2+12A) is equal to |
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Answer» If A=[2−3−41], then adj(3A2+12A) is equal to |
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| 9940. |
∫10sin−1(2x1+x2)dx= |
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Answer» ∫10sin−1(2x1+x2)dx= |
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| 9941. |
Let →a=2^i+^j−2^k and →b=^i+^j. If →c is a vector such that →a.→c=|→c|, |→c−→a|=2√2 and the angle between (→a×→b) and →c is 30∘ ,then |(→a×→b)×→c| is equal to |
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Answer» Let →a=2^i+^j−2^k and →b=^i+^j. If →c is a vector such that →a.→c=|→c|, |→c−→a|=2√2 and the angle between (→a×→b) and →c is 30∘ ,then |(→a×→b)×→c| is equal to |
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| 9942. |
Find the equation ofthe plane passing through the line of intersection of the planesandandparallel to x-axis. |
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Answer» Find the equation of |
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| 9943. |
Given \vert\overrightarrow{A_1}\vert=2, \vert{\overrightarrow A}_2\vert= 3 and \vert\overrightarrow{A_1}+\overrightarrow{A_2\vert}= 3. Find the value of ({\overrightarrow A}_1+2\overrightarrow{A_2).}(3\overrightarrow{A_1} -4{\overrightarrow A}_2) |
| Answer» Given \vert\overrightarrow{A_1}\vert=2, \vert{\overrightarrow A}_2\vert= 3 and \vert\overrightarrow{A_1}+\overrightarrow{A_2\vert}= 3. Find the value of ({\overrightarrow A}_1+2\overrightarrow{A_2).}(3\overrightarrow{A_1} -4{\overrightarrow A}_2) | |
| 9944. |
In a test (+5) marks are given for every correct answer and (- 2) marks are given for every incorrect answer.(i) Radhika answered all the questions and scored 30 marks and get 10 correct answers(ii) Jay also answered all the questions and scored (-12) marks though he got 4 correct answersHow many incorrect answers had they attempted? |
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Answer» In a test (+5) marks are given for every correct answer and (- 2) marks are given for every incorrect answer. (i) Radhika answered all the questions and scored 30 marks and get 10 correct answers (ii) Jay also answered all the questions and scored (-12) marks though he got 4 correct answers How many incorrect answers had they attempted? |
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| 9945. |
The following graph shows two straight lines passing through the origin. Find the slope of Line 2 from the given graph if the product of two slopes of the two lines is -1. |
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Answer» The following graph shows two straight lines passing through the origin. Find the slope of Line 2 from the given graph if the product of two slopes of the two lines is -1. |
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| 9946. |
Let A and B be two n×n matrices such that det(A)≠0, A+B=(AB)2 and BAB=A+I, where I is an identity matrix. Which of the following is/are CORRECT? |
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Answer» Let A and B be two n×n matrices such that det(A)≠0, A+B=(AB)2 and BAB=A+I, where I is an identity matrix. Which of the following is/are CORRECT? |
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| 9947. |
What is the cyclisity of numbers from 1 to 10. |
| Answer» What is the cyclisity of numbers from 1 to 10. | |
| 9948. |
title |
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Answer» title |
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| 9949. |
Let In=e∫1x19(log|x|)n dx, where n∈N. If (20)I10=αI9+βI8, for natural numbers α and β, then α−β equals to |
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Answer» Let In=e∫1x19(log|x|)n dx, where n∈N. If (20)I10=αI9+βI8, for natural numbers α and β, then α−β equals to |
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| 9950. |
The hypotenuse of a right angled triangle has its ends at the points (1, 3) and (−4, 1). Find the equation of the legs (perpendicular sides) of the triangle. |
| Answer» The hypotenuse of a right angled triangle has its ends at the points (1, 3) and (−4, 1). Find the equation of the legs (perpendicular sides) of the triangle. | |