Question

If `sin 2theta = 2sinthetacostheta`, what is `sin 50theta`?

Answer 1

`sin50theta=2sin25thetacos25theta`

Explanation:

The formula you've been given is a way of basically dividing the thing inside the `sin` by 2, and half of `50` is `25`, so instead of `2sinthetacostheta`, its `2sin25thetacos25theta`

PS: If you wanted to get this in terms of `sintheta` and `costheta`, you either have to:
1. Have knowledge of complex numbers and De Moivre's Theorem or if not,
2. Have wayyyyyy too much time on your hands