Q. Let $f(x)=\begin{cases}x^3+x^2-10 x ; & -1 \leq x < 0 \\ \sin x ; & 0 \leq x < \pi / 2 \\ 1+\cos x ; & \pi / 2 \leq x \leq \pi\end{cases}$, then $f(x)$ has
Application of Derivatives
Solution:
Correct answer is (c) absolute minima at $x=0, \pi$
