Question

evaluate sin(π/2)

Explanation:

Step1: Recall the unit - circle definition of sine

On the unit circle, for an angle \(\theta\), \(\sin\theta=y\) - coordinate of the point on the unit circle corresponding to the angle \(\theta\).
The angle \(\theta = \frac{\pi}{2}\) radians corresponds to the point \((0,1)\) on the unit circle.

Answer:

\(1\)