Question

How would I simplify sin2(theta)/2cos(theta)?

Answer 1

@freckles

Answer 2

@misty1212

Answer 3

@rational

Answer 4

\[\Large\rm \frac{\color{orangered}{\sin (2\theta)}}{2\cos\theta}\]Hey David :)
Apply your Sine Double Angle Formula to the numerator.

Answer 5

\[\Large\rm \color{orangered}{\sin(2\theta)=2\sin \theta \cos \theta}\]Remember that one?

Answer 6

Yeah

Answer 7

I got that part and the bottom Im not sure which one to use

Answer 8

No no, leave the bottom alone. That's just a simple cosine down there, ya?
Change the top, then look for cancellations.

Answer 9

I'm getting just sinA, is that right?

Answer 10

Yay good job \c:/
sin(theta) appears to be all we're left with!

Answer 11

ty