prove that : tan -1 { (1+x)1/2 - (1-x)1/2 / (1+x)1/2 + (1-x)1/2 } = pi/4 - 1/2 cos -1x - Maths - Inverse Trigonometric Functions

Question

prove that :
tan -1 { (1+x)1/2 - (1-x)1/2 /
(1+x)1/2 + (1-x)1/2 } = pi/4 - 1/2 cos
-1x

Lalit Mehra · Accepted Answer

Hi! Here is the answer to your question

Cheers!