InterviewSolution
Saved Bookmarks
| 1. |
\begin{array}{l}{\text { If } f(x)=x \sin x, \text { then } f^{\prime}\left(\frac{\pi}{2}\right) \text { is equal to }} \\ {\text { (a) } 0} \\ {\text { (c) } 1}\end{array} |
| Answer» | |