Question

Prove: sin θ - sin θ•cos^2 θ = sin^3 θ. You must show all work.

Answer 1

\[\cos^2\theta = 1-\sin^2\theta\]

Answer 2

take sin theta common and then use the identity.

Answer 3

\[\sin \theta-\sin \theta *(1-\sin^2 \theta)\]

Answer 4

sin\[\sin \theta -\sin \theta +\sin^3\theta\]

Answer 5

=\[\sin^3 \theta\]

Answer 6

@?HelpMePlease?

Answer 7

Thanks