What is 1-tan^2(x)
I need to know how to simplify this expression.
How do you simplify the expression 1+tan2x?
Answered by Kenneth S.
1-tan^2(x) = 1 – (sin2x)/(cos2x) = [cos2x – sin2x]/cos2x = [cos 2x]/cos2x is a posibly ‘simplified’ version in that it has been boiled down to only cosines.
Answered by Subha
Change to sines and cosines then simplify.