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. |
The general solution of sinx+cosx=1 is |
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Answer» The general solution of sinx+cosx=1 is |
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| 2. |
The product of two of the four roots of the quadratic equation x4−183+kx2+200x−1984=0 is −32. Determine the value of k. (correct answer + 3, wrong answer 0) |
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Answer» The product of two of the four roots of the quadratic equation x4−183+kx2+200x−1984=0 is −32. Determine the value of k. (correct answer + 3, wrong answer 0) |
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| 3. |
If log xb−c=log yc−a=log za−b , then which of the following is/are true? |
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Answer» If log xb−c=log yc−a=log za−b , then which of the following is/are true? |
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| 4. |
Discuss the continuity and differentiability of the function f(x) = |x|+|x-1| in the interval (-1,2). |
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Answer» Discuss the continuity and differentiability of the function f(x) = |x|+|x-1| in the interval (-1,2). |
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| 5. |
The product of non-real roots of the equation (x2+x−2)(x2+x−3)=12 is |
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Answer» The product of non-real roots of the equation (x2+x−2)(x2+x−3)=12 is |
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| 6. |
The numerical value of 3(sinx−cosx)4+6(sinx+cosx)2+4(sin6x+cos6x) is |
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Answer» The numerical value of 3(sinx−cosx)4+6(sinx+cosx)2+4(sin6x+cos6x) is |
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| 7. |
If U = {1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {2, 4, 6, 8} and B = {2, 3, 5, 7}, verify that (i) (A∪B)′=A′∩B′ (ii) (A∩B)′=A′∪B′ |
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Answer» If U = {1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {2, 4, 6, 8} and B = {2, 3, 5, 7}, verify that (i) (A∪B)′=A′∩B′ (ii) (A∩B)′=A′∪B′ |
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| 8. |
P(a)=0.8;;p(b)=0.5&p,(b/a)=0.4;;;;find p(a intersection b) |
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Answer» P(a)=0.8;;p(b)=0.5&p,(b/a)=0.4;;;;find p(a intersection b) |
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| 9. |
If A is a square matrix such that A2=A, then write the value of 7A−(1+A)3, where I is an identify matrix. |
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Answer» If A is a square matrix such that A2=A, then write the value of 7A−(1+A)3, where I is an identify matrix. |
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| 10. |
If A and B are any two events such that P(A)=12,P(B)=13, and P(A∩B)=14,then P(A′/B′)= |
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Answer» If A and B are any two events such that P(A)=12,P(B)=13, and P(A∩B)=14,then P(A′/B′)= |
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| 11. |
The value of 2sec−1 2+sin−1(12) is (a) π6 (b) 5π6 (c) 7π6 (d) 1 |
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Answer» The value of 2sec−1 2+sin−1(12) is (a) π6 (b) 5π6 (c) 7π6 (d) 1 |
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| 12. |
If 1,2,1 are the direction ratios of a line then which of the following could be direction cosines of this line? |
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Answer» If 1,2,1 are the direction ratios of a line then which of the following could be direction cosines of this line? |
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| 13. |
The sum of the solutions of the equation |x2−10x+21|=|x−3| is |
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Answer» The sum of the solutions of the equation |x2−10x+21|=|x−3| is |
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| 14. |
limx→∞(13+132+133+....+13n) |
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Answer» limx→∞(13+132+133+....+13n) |
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| 15. |
The coordinates of the focus of the parabola y2−x−2y+2=0 are |
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Answer» The coordinates of the focus of the parabola y2−x−2y+2=0 are |
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| 16. |
Find the coordinates of the centre of the circle inscribed in a triangle whose vertices are A(-36,7),B(20,7)and C(0,-8). |
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Answer» Find the coordinates of the centre of the circle inscribed in a triangle whose vertices are A(-36,7),B(20,7)and C(0,-8). |
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| 17. |
If 5 cos22x+4(cos2x+sin4x+cos6x+sin6x)=8, then |
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Answer» If 5 cos22x+4(cos2x+sin4x+cos6x+sin6x)=8, then |
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| 18. |
If y=sin x+ex,then d2xdy2= |
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Answer» If y=sin x+ex,then d2xdy2= |
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| 19. |
The range of f(x)=x2+14x+9x2+2x+3, x∈R is |
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Answer» The range of f(x)=x2+14x+9x2+2x+3, x∈R is |
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| 20. |
Find the equation of the curve passing through the point (0,π3) and satisfying the differential equation sinxcosy dx+cosxsiny dy=0, wherex,y∈(0,π2) |
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Answer» Find the equation of the curve passing through the point (0,π3) and satisfying the differential equation sinxcosy dx+cosxsiny dy=0, wherex,y∈(0,π2) |
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| 21. |
Integrate cosx/[ (1-sinx) (2-sinx) ] with respect to x |
| Answer» Integrate cosx/[ (1-sinx) (2-sinx) ] with respect to x | |
| 22. |
Interval in which ‘a′ lies so that x3–3x+a=0 has three real and distinct roots. |
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Answer» Interval in which ‘a′ lies so that x3–3x+a=0 has three real and distinct roots. |
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| 23. |
If ddx[1+x2+x41+x+x2]=ax+b then(a,b)= |
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Answer» If ddx[1+x2+x41+x+x2]=ax+b then(a,b)= |
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| 24. |
Evaluate ∣∣∣∣1xy1x+yy1xx+y∣∣∣∣ |
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Answer» Evaluate ∣∣ |
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| 25. |
If (2x+3)(4−3x)3(x−4)x5(x+2)2≤0, then x∈ |
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Answer» If (2x+3)(4−3x)3(x−4)x5(x+2)2≤0, then x∈ |
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| 26. |
Let f:R→R be defined as f(x)=x4. Choose the correct answer. (a) f is one-one onto (b) f is many-one onto (c) f is one-one but not onto (d) f is neither one-one nor onto |
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Answer» Let f:R→R be defined as f(x)=x4. Choose the correct answer. |
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| 27. |
If one side of a triangle is double the other and the angles opposite to these sides differ by 600, then the triangle is |
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Answer» If one side of a triangle is double the other and the angles opposite to these sides differ by 600, then the triangle is |
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| 28. |
The coefficient ofx103 in (1+x+x2+x3+x4)199.(x−1)201 is |
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Answer» The coefficient ofx103 in (1+x+x2+x3+x4)199.(x−1)201 is |
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| 29. |
Select the conjunction which can be used to join the sentences. I would be delighted to accept your application, ___ you should have come in early for it to be valid. |
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Answer» Select the conjunction which can be used to join the sentences. I would be delighted to accept your application, ___ you should have come in early for it to be valid. |
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| 30. |
Total number of terms in the expansion of (1-x-x^2)^5 is ________ |
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Answer» Total number of terms in the expansion of (1-x-x^2)^5 is ________ |
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| 31. |
Show that (1+|a|^2) (1+|b|^2)=|1-a.b|^2+|a+b+a×b|^2 . For any 2 vectors a and b |
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Answer» Show that (1+|a|^2) (1+|b|^2)=|1-a.b|^2+|a+b+a×b|^2 . For any 2 vectors a and b |
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| 32. |
∫a1x.a−[logax]dx=e−12, where a>1and [.] denotes the greatest integer function, then the value of a2is |
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Answer» ∫a1x.a−[logax]dx=e−12, where a>1and [.] denotes the greatest integer function, then the value of a2is |
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| 33. |
Solution to the differential equation x+x33!+x55!+.......1+x22 +x44!+......=dx−dydx+dy is |
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Answer» Solution to the differential equation x+x33!+x55!+.......1+x22 +x44!+......=dx−dydx+dy is |
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| 34. |
Solution of |x||x+1|=2 is |
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Answer» Solution of |x||x+1|=2 is |
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| 35. |
The result of 21 football matches (win,lose,draw) are to be predicted. The number of different forecasts that can contain 19 wins is |
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Answer» The result of 21 football matches (win,lose,draw) are to be predicted. The number of different forecasts that can contain 19 wins is |
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| 36. |
Y= x-[x] defined for N>N Is this function one,one or onto or both???? |
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Answer» Y= x-[x] defined for N>N Is this function one,one or onto or both???? |
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| 37. |
Identify the function from the description given. 1. Its an irrational function 2. Its graph is mirror image of y =x2n about y = x, for some n ≥ 1, n ∈ I and x ≥ 0 3. x ≤ f(x) ≤ x1/6 if x ∈ [0, 1] 4. Its domain and range are [0, ∞) |
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Answer» Identify the function from the description given. 1. Its an irrational function 2. Its graph is mirror image of y =x2n about y = x, for some n ≥ 1, n ∈ I and x ≥ 0 3. x ≤ f(x) ≤ x1/6 if x ∈ [0, 1] 4. Its domain and range are [0, ∞) |
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| 38. |
The value of the expression √3 cosec 20∘−sec20∘ is |
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Answer» The value of the expression √3 cosec 20∘−sec20∘ is |
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| 39. |
If cos A= mcos B and cot(A+B)2=λtan(B−A2) and λ is |
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Answer» If cos A= mcos B and cot(A+B)2=λtan(B−A2) and λ is |
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| 40. |
Order and degree of differential equation are[MP PET 1996] |
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Answer» Order and degree of differential equation [MP PET 1996] |
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| 41. |
If P ≡ (0,1,0), Q ≡ (0,0,1), then projection of PQ on the plane x+ y + z = 3 is [EAMCET 2002] |
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Answer» If P ≡ (0,1,0), Q ≡ (0,0,1), then projection of PQ on the plane x+ y + z = 3 is |
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| 42. |
sin−1|cosx|−cos−1|sinx|=a has at least one solution if a ∈ |
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Answer» sin−1|cosx|−cos−1|sinx|=a has at least one solution if a ∈ |
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| 43. |
Given that tan A,tan B are the roots of the equation x2−px+q=0, then the value of sin2(A+B) is |
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Answer» Given that tan A,tan B are the roots of the equation x2−px+q=0, then the value of sin2(A+B) is |
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| 44. |
A single letter is selected at random from the word ‘PROBABILITY’. The probability that it is a vowel is |
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Answer» A single letter is selected at random from the word ‘PROBABILITY’. The probability that it is a vowel is |
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| 45. |
R = { (T1 , T2) : T1 , T2 ϵ A and T1 is congruent to T2} Then the relation R is______ |
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Answer» R = { (T1 , T2) : T1 , T2 ϵ A and T1 is congruent to T2} Then the relation R is______ |
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| 46. |
The value of tan9∘⋅tan27∘⋅tan45∘⋅tan63∘⋅tan81∘ is |
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Answer» The value of tan9∘⋅tan27∘⋅tan45∘⋅tan63∘⋅tan81∘ is |
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| 47. |
Let f(x)=∫10|t−x|t dt for all real x. Then the minimum value of f(x) is |
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Answer» Let f(x)=∫10|t−x|t dt for all real x. Then the minimum value of f(x) is |
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| 48. |
The number of all possible value(s) of k for which the system of equations kx+y+z=k−1, x+ky+z=k−1, x+y+kz=k−1 has no solution is |
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Answer» The number of all possible value(s) of k for which the system of equations kx+y+z=k−1, x+ky+z=k−1, x+y+kz=k−1 has no solution is |
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| 49. |
Shape of O2F2 is similar to |
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Answer» Shape of O2F2 is similar to |
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| 50. |
A die is thrown twice. What is the probability that at least one of the two throws come up with the number 3? |
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Answer» A die is thrown twice. What is the probability that at least one of the two throws come up with the number 3? |
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