Question

Can I get some help with trigonometric identities?
Specifically the power-reducing identity.

Answer 1

Rewrite \[\tan ^{4}x sinx\]in terms of containing only first powers of sine and cosine.

Answer 2

\[\tan^4x=\frac{ \sin^4x }{ \cos^4x }\]
Hmm where can go from there :)

Answer 3

Thanks. I can work it from there. I hadn't thought of doing it that way.