The function f(x)=4 sin^(3) x-6 sin^(2) ...

The function `f(x)=4 sin^(3) x-6 sin^(2) x+12 sin x+100` is strictly.

A

increasing in `(pi,(3pi)/(2))`

B

decreasing in `(pi/2,pi)`

C

decreasing in `[(-pi)/(2),(pi)/(2)]`

D

decreasing in `(0,pi/2)`

Verified by Experts

The correct Answer is:

B

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