Q:evaluate - i) tan^-1(sin (-pi/2)
ii) tan^-1(2cos (2sin^-1 1/2)iii) sin^-1(2a / (1+a^2) + sin^-1(2b/(1+b^2)=2tan^-1 x
(i)
(ii)
(iii)
the given equation is:
let
similarly
therefore
hope this helps you
(ii)
(iii)
the given equation is:
let
similarly
therefore
hope this helps you