InterviewSolution
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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