Question

prove each identity:

tan theta = 1-cos2theta / sin 2 theta

Answer 1

use 1-cos 2theta=2sin^2 theta
sin 2 theta=2 sin theta cos theta and solve

Answer 2

im not getting it right, can you write it for me using the drawing?

Answer 3

\[\tan \theta =\frac{ 1-\cos 2\theta }{ \sin 2\theta } \]
\[1-\cos 2\theta=2\sin ^{2}\theta ,\sin 2\theta =2\sin \theta \cos \theta \]
solve it