Gaokao Math Practice Question
11. 函数 $f(x)=\cos x+(x+1) \sin x+1$ 在区间 $[0,2 \pi]$ 的最小值、最大值分别为 ()
- A.$-\frac{\pi}{2}, \frac{\pi}{2}$
- B.$-\frac{3 \pi}{2}, \frac{\pi}{2}$
- C.$-\frac{\pi}{2}, \frac{\pi}{2}+2$
- D.$-\frac{3 \pi}{2}, \frac{\pi}{2}+2$
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