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

The function `f(x)=4sin^(3)x-6sin^(2)x+12sinx+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]`

Text Solution

Verified by Experts

The correct Answer is:
B
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ACCURATE PUBLICATION-APPLICATIONS OF DERIVATIVES-QUESTIONS CARRYING 1 MARK - TYPE-I
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  11. Which of the following function is strictly decreasing in ( 0, pi/2) ?

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