"Tanh"^(-1) x = a log ((1+x)/(1-x)), |x|...

`"Tanh"^(-1) x = a log ((1+x)/(1-x)), |x| lt 1 rArr a `=

A

1

B

2

C

`(1)/(2)`

D

`(1)/(4)`

Text Solution

Verified by Experts

The correct Answer is:

C

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