Answer
a.)$\frac{1}{2}$
b.)-$\frac{1}{2}$
Work Step by Step
a.)sin$\frac{5\pi}{6}$ corresponds to y value.
sin$\frac{5\pi}{6}$ = $\frac{1}{2}$
b.)Sine is an odd function, so sin(-t) = -sin t.
sin-$\frac{5\pi}{6}$ = - sin$\frac{5\pi}{6}$ = -$\frac{1}{2}$
