Question

Prove 2 sin 4x (2 cos^2x)= 4 cos^2 x sin 4x

Answer 1

Step-by-step explanation:

LHS:-

2 sin 4x (2cos.2x)

=2 sin 4x X 2cos.2x

=4 (sin 4x . cos 2x)

therefore, LHS=RHS

~PROVED