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I=int(dx)/((1+e^(x))(1+e^(-x)))=......

`I=int(dx)/((1+e^(x))(1+e^(-x)))=...`

A

`(-1)/(1+e^(x))`

B

`(e^(x))/(1+e^(x))`

C

`(1)/(1+e^(x))`

D

None of these

Text Solution

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The correct Answer is:
A
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