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Value of tan^(-1)1/3+tan ^(-1)1/5+tan^(-...

Value of `tan^(-1)1/3+tan ^(-1)1/5+tan^(-1)1/7+tan^(-1)1/8` is

A

`pi`

B

`(3pi)/4`

C

`pi/2`

D

`pi/4`

Text Solution

Verified by Experts

The correct Answer is:
D
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