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.
| 151. |
Let f(x)=sinx,g(x)=loge|x|. If the ranges of the composite functions fog and gof are R1 and R2 respectively, then |
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Answer» Let f(x)=sinx,g(x)=loge|x|. If the ranges of the composite functions fog and gof are R1 and R2 respectively, then |
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| 152. |
In ΔABC, right angled at B. If, find the value of(i) sin A cos C + cos A sin C(ii) cos A cos C − sin A sin C |
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Answer» In ΔABC, right angled at B. If (i) sin A cos C + cos A sin C (ii) cos A cos C − sin A sin C |
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| 153. |
Let f:R→R be a continuously differentiable function such that f(2)=6 and f′(2)=148.If f(x)∫64t3 dt=(x−2)g(x), then limx→2 g(x) is equal to |
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Answer» Let f:R→R be a continuously differentiable function such that f(2)=6 and f′(2)=148. |
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| 154. |
∫xx4−1dx= |
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Answer» ∫xx4−1dx= |
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| 155. |
The equation of circle touching the line 2x+3y+1=0 at (1,−1) and cutting orthogonally the circle having line segment joining (0,3) and (−2,−1) as diameter is |
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Answer» The equation of circle touching the line 2x+3y+1=0 at (1,−1) and cutting orthogonally the circle having line segment joining (0,3) and (−2,−1) as diameter is |
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| 156. |
Suppose a2=5a−8 and b2=5b−8, then equation whose roots are ab and ba is |
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Answer» Suppose a2=5a−8 and b2=5b−8, then equation whose roots are ab and ba is |
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| 157. |
If R is the set of all real numbers and Q is the set of all rational numbers then what is the set (R-Q) ? |
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Answer» If R is the set of all real numbers and Q is the set of all rational numbers then what is the set (R-Q) ? |
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| 158. |
Which of these is the shape of graph of y=x2−2x+5. |
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Answer» Which of these is the shape of graph of y=x2−2x+5. |
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| 159. |
The number of all possible values of θ,where0<θ<π, for which the system of equations (y+z)cos3θ=(xyz)sin3θ xsin3θ=2cos3θy+2sin3θz(xyz)sin3θ=(y+2z)cos3θ+ysin3θ have a solution (x0,y0,z0)withy0z0≠0 is___ |
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Answer» The number of all possible values of θ,where0<θ<π, for which the system of equations (y+z)cos3θ=(xyz)sin3θ |
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| 160. |
Write Minors and Cofactors of the elements of following determinants: (i) (ii) |
| Answer» Write Minors and Cofactors of the elements of following determinants: (i) (ii) | |
| 161. |
The value of limx→∞(√3x2+√3x2+√3x2−√3x2)is k. Then the value of 2k is |
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Answer» The value of limx→∞(√3x2+√3x2+√3x2−√3x2)is k. Then the value of 2k is |
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| 162. |
Write the order of the differential equation: log(d2ydx2)=(dydx)3+x. |
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Answer» Write the order of the differential equation: log(d2ydx2)=(dydx)3+x. |
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| 163. |
∫10 x sin−1x dx= |
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Answer» ∫10 x sin−1x dx= |
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| 164. |
19. If vector a b c and d are non coplanar vectors , then d.{ax[bx(cxd)]} is equal to ? |
| Answer» 19. If vector a b c and d are non coplanar vectors , then d.{ax[bx(cxd)]} is equal to ? | |
| 165. |
9. What are the roots of 9xsquare+2x-3=0 with solution |
| Answer» 9. What are the roots of 9xsquare+2x-3=0 with solution | |
| 166. |
Let set R={P:B⊆P⊆A}. If A={1, 2, 3, 4, 5} and B={1, 2}, then the number of elements in set R is |
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Answer» Let set R={P:B⊆P⊆A}. If A={1, 2, 3, 4, 5} and B={1, 2}, then the number of elements in set R is |
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| 167. |
33.Prove that cos(3/4+x)-cos(3/4-x)=2sin x |
| Answer» 33.Prove that cos(3/4+x)-cos(3/4-x)=2sin x | |
| 168. |
cos68o cos8o + sin68o sin8o =? |
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Answer» cos68o cos8o + sin68o sin8o =? |
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| 169. |
If matrix A is a square matrix, then the possible number of elements in A is |
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Answer» If matrix A is a square matrix, then the possible number of elements in A is |
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| 170. |
Graph of f(x) is given. Draw the graph of f−1(x) |
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Answer» Graph of f(x) is given. Draw the graph of f−1(x)
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| 171. |
Let y=y(x) be the solution of the differential equation xdy–ydx=√(x2−y2)dx, x≥1, with y(1)=0. If the area bounded by the line x=1,x=eπ,y=0 and y=y(x) is αe2π+b, then the value of 10(α+β) is equal to |
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Answer» Let y=y(x) be the solution of the differential equation xdy–ydx=√(x2−y2)dx, x≥1, with y(1)=0. If the area bounded by the line x=1,x=eπ,y=0 and y=y(x) is αe2π+b, then the value of 10(α+β) is equal to |
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| 172. |
Prove that:sin 4x=4 sin x cos3x-4 cos x sin3 x |
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Answer» Prove that: |
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| 173. |
18 guests have to be seated , half on each side of a long table.4 particular guests desire to sit on 1 particular side and 3 others on the other side .Deter Dete the number of ways in which the sitting arrangement can be done. |
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Answer» 18 guests have to be seated , half on each side of a long table.4 particular guests desire to sit on 1 particular side and 3 others on the other side .Deter Dete the number of ways in which the sitting arrangement can be done. |
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| 174. |
Area under the circle x2 + y2 = 16 is |
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Answer» Area under the circle x2 + y2 = 16 is |
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| 175. |
The value of k (k>0) such that the length of the longest interval in which the function f(x)=sin−1(|sinkx|)+cos−1(coskx) is constant is π4 will be |
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Answer» The value of k (k>0) such that the length of the longest interval in which the function f(x)=sin−1(|sinkx|)+cos−1(coskx) is constant is π4 will be |
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| 176. |
∫10x1+√xdx= |
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Answer» ∫10x1+√xdx= |
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| 177. |
The resultant of P and Q is R. If Q is doubled, R is also doubled and if Q is reversed, R is again doubled. Then, P2:Q2:R2 given by |
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Answer» The resultant of P and Q is R. If Q is doubled, R is also doubled and if Q is reversed, R is again doubled. Then, P2:Q2:R2 given by |
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| 178. |
The following pie chart gives the distribution of constituents in the human body. The central angle of the part showing the distribution of protein and dry elements is |
Answer» The following pie chart gives the distribution of constituents in the human body. The central angle of the part showing the distribution of protein and dry elements is![]() |
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| 179. |
Find the set of values of m for which exactly one root of the equation x2+mx+(m2+6m)=0 lie in (−2,0) |
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Answer» Find the set of values of m for which exactly one root of the equation x2+mx+(m2+6m)=0 lie in (−2,0) |
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| 180. |
If sin xy+yx=x2-y2, find dydx |
| Answer» If | |
| 181. |
If P(2)=0 and P′(x)+20P(x)<0 for all x>0.Then the number of solution(s) for P(x)=1 for x>2, is |
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Answer» If P(2)=0 and P′(x)+20P(x)<0 for all x>0.Then the number of solution(s) for P(x)=1 for x>2, is |
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| 182. |
π/4∫0esec2xsin xcos3xdx equals |
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Answer» π/4∫0esec2xsin xcos3xdx equals |
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| 183. |
6. 2x-3y 6 |
| Answer» 6. 2x-3y 6 | |
| 184. |
The set of points where the function f(x)=x+1,x<22x-1,x≥2is not differentiable, is ____________. |
| Answer» The set of points where the function is not differentiable, is ____________. | |
| 185. |
The equation of the circle which passes through the focus of the parabola x2=4y and touches it at (6, 9) is |
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Answer» The equation of the circle which passes through the focus of the parabola x2=4y and touches it at (6, 9) is |
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| 186. |
If |z1|=2,|z2|=3, then the maximum value of |z1+z2+5+12i| is |
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Answer» If |z1|=2,|z2|=3, then the maximum value of |z1+z2+5+12i| is |
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| 187. |
Given x > 0, the value of fx=–3 cos3+x+x2 lie in the interval ____________. |
| Answer» Given x > 0, the value of lie in the interval ____________. | |
| 188. |
The value of limz→4√z−2z−4 is |
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Answer» The value of limz→4√z−2z−4 is |
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| 189. |
If for a triangle ABC,∣∣∣∣abcbcacab∣∣∣∣=0then sin3A+sin3B+sin3C= |
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Answer» If for a triangle ABC, |
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| 190. |
Which of the following is/are quadratic equation? |
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Answer» Which of the following is/are quadratic equation? |
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| 191. |
b cos B+c cos C=a cos (B−C) |
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Answer» b cos B+c cos C=a cos (B−C) |
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| 192. |
If the distance between the foci of an ellipse is 6 and the distance between its directrices is 12, then the length of its latus rectum is |
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Answer» If the distance between the foci of an ellipse is 6 and the distance between its directrices is 12, then the length of its latus rectum is |
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| 193. |
If 1+2+22+23+…+21999 is divided by 5, then the remainder is |
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Answer» If 1+2+22+23+…+21999 is divided by 5, then the remainder is |
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| 194. |
The solutions of the equation z2+|z|=0 are |
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Answer» The solutions of the equation z2+|z|=0 are |
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| 195. |
If x = a (θ + sin θ), y = a (1 + cos θ), prove that d2ydx2=-ay2. |
| Answer» If x = a (θ + sin θ), y = a (1 + cos θ), prove that . | |
| 196. |
if a+b+c=5 ab+bc+ca=8 then find a^3+b^3+c^3-3abc |
| Answer» if a+b+c=5 ab+bc+ca=8 then find a^3+b^3+c^3-3abc | |
| 197. |
Consider a right angled triangle ABC If the sides of the triangle are a=6,b=10,c=8 units, then the distance between incentre and circumcentre will be |
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Answer» Consider a right angled triangle ABC |
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| 198. |
Give an example of a skew symmetric matrix of order 3. |
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Answer» Give an example of a skew symmetric matrix of order 3. |
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| 199. |
148.The component of vector 2i-3j+2k perpendicular to i+j+k is? |
| Answer» 148.The component of vector 2i-3j+2k perpendicular to i+j+k is? | |
| 200. |
Let f(x)=|x−2| and g(x)=f(f(x)), x∈[0,4]. Then ∫30(g(x)−f(x))dx equal to |
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Answer» Let f(x)=|x−2| and g(x)=f(f(x)), x∈[0,4]. Then ∫30(g(x)−f(x))dx equal to |
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