Question

Determine the sine and cosine ratios for an angle that measures pi/2

Answer 1

We need to determine the values of the functions sine and cosine for the angle π/2.

One way of finding those values is by observing the following unit circle:

Then, for the angle π/2, we have:

$\begin{gathered} \sin\left(\frac{\pi}{2}\right)=1 \\ \\ \cos\left(\frac{\pi}{2}\right)=0 \end{gathered}$