How do you get tan^-1x + tan^-1 (x-1) from tan^-1 [(x+ (x-1))/ (1-x(x-1))] - Maths - Integrals

Question

How do you get tan^-1x + tan^-1 (x-1) from tan^-1 [(x+ (x-1))/
(1-x(x-1))]?

Varun.Rawat · Accepted Answer

How do you get tan^-1x + tan^-1 (x-1) from tan^-1 [(x+ (x-1))/ (1-x(x-1))]?