This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
limx→∞5x3−6x√9+4x6 |
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Answer» limx→∞5x3−6x√9+4x6 |
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| 2. |
The number of common solution(s) of the trigonometric equations cos2x+(1−√3)=(2−√3)cosx and sin3x=2sinx, satisfying the inequality √3tanx−1≥0 in [0,5π] is |
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Answer» The number of common solution(s) of the trigonometric equations cos2x+(1−√3)=(2−√3)cosx and sin3x=2sinx, satisfying the inequality √3tanx−1≥0 in [0,5π] is |
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| 3. |
The number of terms in the expansion of (9x2+12x+4)30 is |
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Answer» The number of terms in the expansion of (9x2+12x+4)30 is |
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| 4. |
Tangents PA and PB are drawn to x2+y2=4 from the point P(3,0). Then the area (in sq. units) of △PAB is |
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Answer» Tangents PA and PB are drawn to x2+y2=4 from the point P(3,0). Then the area (in sq. units) of △PAB is |
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| 5. |
The value of limn→∞(n!(mn)n)1/n, where m∈N is equal to |
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Answer» The value of limn→∞(n!(mn)n)1/n, where m∈N is equal to |
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| 6. |
If P(n) : 2×42n+1+33n+1 is divisible by λ for all nϵN is true, then find the value of λ. |
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Answer» If P(n) : 2×42n+1+33n+1 is divisible by λ for all nϵN is true, then find the value of λ. |
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| 7. |
If n A.M.s are inserted between two numbers, prove that the sum of the means equidistant from the beginning and the end is constant. |
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Answer» If n A.M.s are inserted between two numbers, prove that the sum of the means equidistant from the beginning and the end is constant. |
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| 8. |
In the given figure, BC is a circular arc. If AB.BX=AX2 and the length of the line segment BC is equal to AX, then the value of ∠BAC is |
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Answer» In the given figure, BC is a circular arc. If AB.BX=AX2 and the length of the line segment BC is equal to AX, then the value of ∠BAC is |
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| 9. |
If ∣∣∣3xx1∣∣∣=∣∣∣3241∣∣∣ then x is equal to |
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Answer» If ∣∣∣3xx1∣∣∣=∣∣∣3241∣∣∣ then x is equal to |
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| 10. |
Prove that arctan(x) + arctan(y) = n + arctan (x+y1−xy) if x > 0, y > 0 and xy > 1. And arctan(x) + arctan(y) = arctan (x+y1−xy)−n, if x < 0, y < 0 and xy > 1. |
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Answer» Prove that arctan(x) + arctan(y) = n + arctan (x+y1−xy) if x > 0, y > 0 and xy > 1. And arctan(x) + arctan(y) = arctan (x+y1−xy)−n, if x < 0, y < 0 and xy > 1. |
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| 11. |
The distance, from the origin, of the normal to the curve,x=2cost+2tsint,y=2sint–2tcost, at t=π4,is: |
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Answer» The distance, from the origin, of the normal to the curve,x=2cost+2tsint,y=2sint–2tcost, at t=π4,is: |
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| 12. |
Find the intervals in which the function f given by f(x)=x3+1x3,x≠0 is increasing Find the intervals in which the function f given by f(x)=x3+1x3,x≠0 is decreasing |
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Answer» Find the intervals in which the function f given by f(x)=x3+1x3,x≠0 is Find the intervals in which the function f given by f(x)=x3+1x3,x≠0 is |
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| 13. |
Let P and Q be two distinct points on the parabola y2=4x, with parameters t and t1 respectively. If the normals at P passes through Q, then the minimum value of t21 is |
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Answer» Let P and Q be two distinct points on the parabola y2=4x, with parameters t and t1 respectively. If the normals at P passes through Q, then the minimum value of t21 is |
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| 14. |
A and B are two events such that P(A)≠0. FindP(BA)if A∩B=ϕ |
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Answer» A and B are two events such that P(A)≠0. FindP(BA)if |
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| 15. |
Find the condition that curves 2x=y2 and 2xy = k inersect orthogonally. |
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Answer» Find the condition that curves 2x=y2 and 2xy = k inersect orthogonally. |
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| 16. |
The order of the differential equation of the curve y=ax^2+bx+c where a, b and 'c' are arbitrary constants is |
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Answer» The order of the differential equation of the curve y=ax^2+bx+c where a, b and 'c' are arbitrary constants is |
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| 17. |
The angle (in degrees) subtended at the centre of a circle of diameter 50 cm by an arc of length 11 cm is |
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Answer» The angle (in degrees) subtended at the centre of a circle of diameter 50 cm by an arc of length 11 cm is |
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| 18. |
Let PQR be an acute-angled triangle in which PQ<QR. From the vertex Q draw the altitude QQ1, the angle bisector QQ2 and the median QQ3, with Q1,Q2,Q3 lying on PR. Then |
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Answer» Let PQR be an acute-angled triangle in which PQ<QR. From the vertex Q draw the altitude QQ1, the angle bisector QQ2 and the median QQ3, with Q1,Q2,Q3 lying on PR. Then |
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| 19. |
logx+ log( xy8)/(log x)2+(log y)2=2 & logy+log(x8/y)/(log x)2+(log y)2=0( where base of log is 10 ) compute the product of(xy). |
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Answer» logx+ log( xy8)/(log x)2+(log y)2=2 & logy+log(x8/y)/(log x)2+(log y)2=0( where base of log is 10 ) compute the product of(xy). |
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| 20. |
If the roots of x3+px2+qx+r=0 are in G.P find the relation between p,q,r |
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Answer» If the roots of x3+px2+qx+r=0 are in G.P find the relation between p,q,r |
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| 21. |
find the number of ways of selecting 9 balls from 6 red balls, 5 white balls ,5 blueballs if each selections consists of 3 balls of each colour. |
| Answer» find the number of ways of selecting 9 balls from 6 red balls, 5 white balls ,5 blueballs if each selections consists of 3 balls of each colour. | |
| 22. |
If f(x)={x,x≤1x2+bx+c,x>1 is a differentiable function, then the value of 5c−8b is |
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Answer» If f(x)={x,x≤1x2+bx+c,x>1 is a differentiable function, then the value of 5c−8b is |
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| 23. |
If a∈R&b∈R, then the equation x2−abx−a2=0 has ________. |
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Answer» If a∈R&b∈R, then the equation x2−abx−a2=0 has ________. |
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| 24. |
The equation of a tangent to the parabola y2=8x which makes an angle 45∘ with the line y=3x+5 is |
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Answer» The equation of a tangent to the parabola y2=8x which makes an angle 45∘ with the line y=3x+5 is |
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| 25. |
Why do we use only X and Y as coordinate axes why can't we use A,B,C,P,Q,R etc |
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Answer» Why do we use only X and Y as coordinate axes why can't we use A,B,C,P,Q,R etc |
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| 26. |
The point(s) on y− axis which is equidistant from the points (12,3) and (−5,10) is/are |
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Answer» The point(s) on y− axis which is equidistant from the points (12,3) and (−5,10) is/are |
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| 27. |
For how many cases, D is an answer for at least one of the questions? |
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Answer» For how many cases, D is an answer for at least one of the questions? |
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| 28. |
In the expansion of ((5)12+(7)18)1024, the number of integral terms is |
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Answer» In the expansion of ((5)12+(7)18)1024, the number of integral terms is |
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| 29. |
5(8x+3)=9(4x+7) |
| Answer» 5(8x+3)=9(4x+7) | |
| 30. |
if Z1 +Z2 = real number then is it mandatary that Z2=cojugate(Z1) From my thinking it is not because Z1=4+2i and Z2 =3-2i where Z1 is not the conjugate of Z2 but it is clear that Z1+Z2 = 7 a real number But there is issue in video module of jee complex no |
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Answer» if Z1 +Z2 = real number then is it mandatary that Z2=cojugate(Z1) From my thinking it is not because Z1=4+2i and Z2 =3-2i where Z1 is not the conjugate of Z2 but it is clear that Z1+Z2 = 7 a real number But there is issue in video module of jee complex no |
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| 31. |
The vector is one of the vectors that are linearly dependent with the vector 2^i+3^j |
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Answer» The vector |
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| 32. |
px+qy=40 is a chord of minimum length of the circle (x−10)2+(y−20)2=729. If the chord passes through (5,15), then p2019+q2019 is equal to |
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Answer» px+qy=40 is a chord of minimum length of the circle (x−10)2+(y−20)2=729. If the chord passes through (5,15), then p2019+q2019 is equal to |
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| 33. |
log7 log7 √7(√7√7)= |
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Answer» log7 log7 √7(√7√7)= |
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| 34. |
The equations of the line passing through the point(1,2,-4) and perpendicularto the two lines x−83=y+19−16=z−107 and x−153=y−298=z−5−5, will be |
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Answer» The equations of the line passing through the point(1,2,-4) and perpendicularto the two lines x−83=y+19−16=z−107 and x−153=y−298=z−5−5, will be |
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| 35. |
The least value of cos2θ−6sinθcosθ+3sin2θ+2 is |
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Answer» The least value of cos2θ−6sinθcosθ+3sin2θ+2 is |
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| 36. |
Let f:R→R be defined by f(x)=2x+6 which is a bijective mapping then f−1(x) is given by |
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Answer» Let f:R→R be defined by f(x)=2x+6 which is a bijective mapping then f−1(x) is given by |
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| 37. |
Shortest distance from origin to the curve y=ex+e−x2 |
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Answer» Shortest distance from origin to the curve y=ex+e−x2 |
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| 38. |
The value of cos−1(cos 5π3)+sin−1(sin 5π3) is |
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Answer» The value of cos−1(cos 5π3)+sin−1(sin 5π3) is |
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| 39. |
The number which should be added to the number added to the numbers 2, 14, 62 so that the resulting numbers may be in G.P. is |
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Answer» The number which should be added to the number added to the numbers 2, 14, 62 so that the resulting numbers may be in G.P. is |
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| 40. |
If 2 tan−1(cos x)=tan−1(2 cosec x) then the value of x is |
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Answer» If 2 tan−1(cos x)=tan−1(2 cosec x) then the value of x is
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| 41. |
limx→0sin2xx is equal to |
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Answer» limx→0sin2xx is equal to |
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| 42. |
X, Y, and Z are in Partnership, sharing profits and losses in the ratio of 3:2:1 respectively. Z's share in the profit is guaranteed by X and Y to be a minimum of Rs 8,000. The net profit for the year ended March 31, 2006 was Rs 30,000. Prepare profit and loss asppropriation account, indicating the amount final due to each partner. |
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Answer» X, Y, and Z are in Partnership, sharing profits and losses in the ratio of 3:2:1 respectively. Z's share in the profit is guaranteed by X and Y to be a minimum of Rs 8,000. The net profit for the year ended March 31, 2006 was Rs 30,000. Prepare profit and loss asppropriation account, indicating the amount final due to each partner. |
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| 43. |
Let two fair six - faced dice A and B be thrown simultaneously. If E1 is the event that die A shows up four, E2 is the event that die B shows up two and E3 is the event that the sum of numbers on both dice is odd, then which of the following statements is NOT true? |
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Answer» Let two fair six - faced dice A and B be thrown simultaneously. If E1 is the event that die A shows up four, E2 is the event that die B shows up two and E3 is the event that the sum of numbers on both dice is odd, then which of the following statements is NOT true? |
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| 44. |
In a large metropolitan area, the probabilities are 0.87, 0.36, 0.30 that a family (randomly chosen for a sample survey) owns a colour television set, a black and white television set, or both kinds of sets. What is the probability that a family owns either any one or both kinds of sets ? |
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Answer» In a large metropolitan area, the probabilities are 0.87, 0.36, 0.30 that a family (randomly chosen for a sample survey) owns a colour television set, a black and white television set, or both kinds of sets. What is the probability that a family owns either any one or both kinds of sets ? |
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| 45. |
If A={x:x=3n,nϵZ} and B={x:x=4n,nϵZ} then find A∩B. |
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Answer» If A={x:x=3n,nϵZ} and B={x:x=4n,nϵZ} then find A∩B. |
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| 46. |
If the coefficient of variation of certain distribution is 60 and their standard deviation is 21,then its mean is |
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Answer» If the coefficient of variation of certain distribution is 60 and their standard deviation is 21,then its mean is |
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| 47. |
Let a1a2,b1b2,c1c2 be the consecutive terms of an arithmetic progression. If a1x2+2b1x+c1=0 and a2x2+2b2x+c2=0 have a common root, then a2,b2,c2 are in |
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Answer» Let a1a2,b1b2,c1c2 be the consecutive terms of an arithmetic progression. If a1x2+2b1x+c1=0 and a2x2+2b2x+c2=0 have a common root, then a2,b2,c2 are in |
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| 48. |
If k+5Pk+1 = 11(k−1)2 k+3Pk, then the values of k are |
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Answer» If k+5Pk+1 = 11(k−1)2 k+3Pk, then the values of k are |
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| 49. |
The sum of the series 23+89+2627+8081+... to n term is |
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Answer» The sum of the series 23+89+2627+8081+... to n term is |
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| 50. |
Let z0 be a root of the quadratic equation, x2+x+1=0. If z=3+6iz810−3iz930, then argz is equal to : |
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Answer» Let z0 be a root of the quadratic equation, x2+x+1=0. If z=3+6iz810−3iz930, then argz is equal to : |
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