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int(-1)^(1) (cos h x)/(1+e^(2x))dx=...

`int_(-1)^(1) (cos h x)/(1+e^(2x))dx=`

A

0

B

1

C

`(e^(2)-1)/(2e)`

D

`(e^(2)+2)/(2e)`

Text Solution

Verified by Experts

The correct Answer is:
C
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