The value of `int(f(x)phi\'(x)+phi(x)f\'(x))/((f(x)*phi(x)+1)sqrt(phi(x)*f(x)-1))dx` is (A) `cos^
Channel: Doubtnut
Date: 05/04/2020

The value of `int(f(x)phi\'(x)+phi(x)f\'(x))/((f(x)*phi(x)+1)sqrt(phi(x)*f(x)-1))dx` is (A) `cos^-1sqrt(f(x)^2-phi(x)^2)` (B) `tan^-1[f(x)phi(x)]` (C) `sin^-1sqrt(f(x)/(phi(x))` (D) none of these