Question

Find all values of θ, if θ is in the interval [0, 360°) and has the given function value.

Answer 1

Given

`\cos \theta=(1)/(2)`

Answer

`\begin{gathered} \cos \theta=(1)/(2) \\ \theta=60^(\circ) \\ \theta=180^(\circ)+60^(\circ) \\ \theta=240^(\circ) \end{gathered}`

So

`\theta=60,240`