Question

Find all the values of theta, if theta is in the interval [0 degrees, 360 degrees) and has the given function value of cos theta: square root of 3 over 2

Answer 1

There are two values of theta where the cos(θ)=$\frac{\sqrt{3}}{2}}$

On the unit circle that will be when θ = π/6, 11π/6.

In degree mode, this will be 30° and 330° respectively.