inte^(-x)" cosec"^(2)(2e^(-x)+5)dx...

`inte^(-x)" cosec"^(2)(2e^(-x)+5)dx`

A

`1/2 cot (2e^(-x)+5)+c`

B

`-(1)/(2) cot ( 2e^(-x) +5)+c`

C

`2 cot ( 2e^(-x) +5)+c`

D

`-2 cot (2e^(-x) +5)+c`

Verified by Experts

The correct Answer is:

A

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