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Problem 14

Answer the following questions about the function…

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Problem 13

Answer the following questions about the functions whose derivatives
are given.
a. What are the critical points of $f ?$
b. On what open intervals is $f$ increasing or decreasing?
c. At what points, if any, does $f$ assume local maximum and minimum values?
$$
f^{\prime}(x)=(\sin x-1)(2 \cos x+1), 0 \leq x \leq 2 \pi
$$

Answer

$$
x=\frac{\pi}{2}, \frac{2 \pi}{3}, \frac{4 \pi}{3}
$$


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