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int( d x)/(e^x+e^(-x)) is equal to a)tan...

`int( d x)/(e^x+e^(-x))` is equal to a)`tan ^(-1)(e^x)+C` b)`tan ^(-1)(e^-x)+C` c)`log (e^x-e^-x)+C` d)`log (e^x+e^-x)+C`

A

tan ^(-1)(e^x)+C^circ'

B

tan '^(-1)(e^-x)+C'

C

log (e^x-e^-x)+C'

D

log (e^x+e^-x)+C'

Text Solution

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The correct Answer is:
A
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