Question

(tan² theta)(cos² theta) = 1-cos² theta solve that​

Answer 1

Step-by-step explanation:

(tan theta = sin theta /cos theta )

LHS

sin^2 theta /cos^2 theta x cos^2 theta

= sin^2 theta

( cos^2 +sin^2 = 1 )

sin^2 theta = 1- cos^2 theta

Hence proved