Question

sin theta-sin theta*cos^2 theta=sin^3 theta

Answer 1

u wanna prove it?

Answer 2

@xcandacex3

Answer 3

yes

Answer 4

yeah take sin theta common in the left hand side
\[\sin \theta-\sin \theta*\cos^2 \theta=\sin \theta(1-\cos^2 \theta)=\sin \theta*\sin^2\theta=\sin^3 \theta\]

Answer 5

use this:
\[\sin^2 \theta+\cos^2 \theta=1\\1-\cos^2 \theta=\sin^2 \theta\]

Answer 6

got this?

Answer 7

yes THANK YOU!! :)

Answer 8

yw!!