Question

Question #dbaf9

Answer 1

Here is the solution to question 6.

Explanation:

`2sinthetacostheta = costheta`

`2sinthetacostheta - costheta = 0`

`costheta(2sintheta - 1) = 0`

`theta = 90˚, 270˚, 30˚ and 150˚`

Hopefully this helps!