A, B, C

Geometry Level 3

In right angled triangle $ABC$ , $\angle ACB=90^\circ$ . If $2\tan A = \sin B$ , what does $\sin A$ equal?

2 (\sin 60^\circ - \cos 45^\circ)

\tan 60^\circ - 1

\cos 30^\circ

2\cos 45^\circ - \sin 90^\circ