underset(x to pi//2)lim (cot x-cos x)/((...

`underset(x to pi//2)lim (cot x-cos x)/((pi//2-x)^(3))=`

A

`(-1)/(2)`

B

`(1)/(2)`

C

2

D

`-2`

Verified by Experts

The correct Answer is:

B

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