Question

What is the value of y = sin (θ) when θ = pie /2 ?

Answer 1

@bibby

Answer 2

The value is 1

Answer 3

\(\bf y=sin(\theta)\qquad \theta=\cfrac{pie}{2}\implies half-pie\\ \quad \\
y=sin(half-pie)\implies y= \textit{whipped cream}\\ \quad \\
\textit{unless you meant }\qquad \theta=\cfrac{\pi}{2}\qquad then\\ \quad \\
y=sin\left(\frac{\pi}{2}\right)\)

check your Unit Circle