?60-65. Critical points and extreme valuesa. Find the critical points of the following

Chapter 7, Problem 231

(choose chapter or problem)

60-65. Critical points and extreme values

a. Find the critical points of the following functions on the given interval.

b. Use a graphing device to determine whether the critical points correspond to local maxima, local minima, or neither.

c. Find the absolute maximum and minimum values on the given interval.

\(f(\theta)=2\sin\theta+\cos\theta;\ \ [-2\pi,\ 2\pi]\)

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