If \( y=a \log |x|+b x^{2}+x \) has its extremum values at \( x=-1 ...
If \( y=a \log |x|+b x^{2}+x \) has its extremum values at \( x=-1 \) and \( x=2 \), then
\( \mathrm{P} \)
(A) \( a=2, b=-1 \)
(B) \( a=2, b=-\frac{1}{2} \)
W
(C) \( a=-2, b=\frac{1}{2} \)
(D) None of these
π²PW App Link - https://bit.ly/YTAI_PWAP
πPW Website - https://www.pw.live
Other Videos By PW Solutions
| 2023-02-14 | From mean value theorem: \( f(b)-f(a)=(b-a) f^{\prime}\left(x_{1}\r... |
| 2023-02-14 | If \( \alpha+\beta+\gamma=2 \pi \), then the system of equations
\[... |
| 2023-02-14 | Two classrooms A and B having capacity of 25 and \( (n-25) \) seats respectively. \( A_{n} \) de... |
| 2023-02-14 | The number of 6 digit numbers that can be formed using the digits \( 0,1,2,5,7 \) and 9 which ar... |
| 2023-02-14 | Average torque on a projectile of mass \( m \), initial speed \( u \) and angle of projection \(... |
| 2023-02-14 | Which of the following statements are true?
I. In the interaction w... |
| 2023-02-14 | The number of value of \( k \) for which the equation \( x^{3}-3 x+... |
| 2023-02-14 | A homogenous rod of length \( l=\eta x \) and mass \( M \) is lying on a smooth horizontal floor... |
| 2023-02-14 | The number of ways of choosing a committee of 2 women \& 3 men from 5 women \& 6 men, if Mr. A r... |
| 2023-02-14 | Experimental study of photoelectric effect shows that
I. photocurre... |
| 2023-02-14 | If \( y=a \log |x|+b x^{2}+x \) has its extremum values at \( x=-1 ... |
| 2023-02-14 | Consider the number \( N=2910600 \).
On the basis of above information, answer the following que... |
| 2023-02-14 | Equation of the tangent to the curve \( y=e^{-|x|} \) at the point ... |
| 2023-02-14 | To observe the effect of intensity of light on photocurrent,
I. col... |
| 2023-02-14 | There are 10 straight lines in a plane, such that no 3 are concurrent and no 2 are parallel to e... |
| 2023-02-14 | Maxwell's equations are
I. Gauss's law for electrostatics.
II. Gaus... |
| 2023-02-14 | - Energy required by an electron for electron emission can be suppl... |
| 2023-02-14 | In the following
questions, a Statement \( I \) is followed by a co... |
| 2023-02-14 | There are \( \mathrm{m} \) points on a straight line \( \mathrm{AB} \& \mathrm{n} \) points on t... |
| 2023-02-14 | If \( \left|\begin{array}{ccc}a-b-c & 2 a & 2 a \\ 2 b & b-c-a & 2 ... |
| 2023-02-14 | In the following
questions, a Statement \( I \) is followed by a
co... |
0