Given that $\sin\theta=\frac{1}{2}$sinθ=12, we want to find the value of $\cos\theta$cosθ.
First, find the value of $\theta$θ.
Hence, find the exact value of $\cos30^\circ$cos30°.
Given that $\cos\theta=\frac{1}{2}$cosθ=12.
Consider the adjacent figure: