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Let f(x)=tan^(-1)(1/2 tan2x)+tan^(-1)(co...

Let `f(x)=tan^(-1)(1/2 tan2x)+tan^(-1)(cotx)+tan^(-1)(cot^3x) then` (1) `f((3 pi)/8)=pi` (2) `f(pi/8)=0` (3) `f(pi/8) =pi` (4) `f((3pi)/8)=0`

A

`f((3pi)/8)=pi`

B

`f(pi/8)=0`

C

`f(pi/8)=pi`

D

`f((3pi)/8)=0`

Text Solution

Verified by Experts

The correct Answer is:
B, D
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