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tan^(-1)""(1/)+3 tan^(-1)"" 1/7=...

`tan^(-1)""(1/)+3 tan^(-1)"" 1/7=`

A

`tan^(-1) 44/29`

B

`pi/2`

C

0

D

`pi/4`

Text Solution

Verified by Experts

The correct Answer is:
D
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