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Find the value of the following: int(pi/...

Find the value of the following: `int_(pi/4)^(pi/2) cosec^2thetacostheta d theta`

A

`sqrt(2)-1`

B

`1-sqrt(2)`

C

`sqrt(2)+1`

D

`1-2sqrt(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
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