How to show that integral sqrt(x+1) / sqrt(x-1) dx = pi using Trig sub.

In this video I demonstrate how to show that integral sqrt(x+1)/sqrt(x-1) dx = pi using Trig sub. The importance of radian is explained. Step by step tutorial by Math In Twi. com
How to show that integral sinx dx = - cosx+c
Link : • How to prove that inte...