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If Tan^(-1)(1+x)+Tan^(-1)(1-x)=pi//4 the...

If `Tan^(-1)(1+x)+Tan^(-1)(1-x)=pi//4` then x =

A

2

B

`pm2`

C

`sqrt2`

D

`pmsqrt2`

Text Solution

Verified by Experts

The correct Answer is:
D
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