Question

I need help solving it

Answer 1

for a Unit Circle, the radius "r" is 1
now, we know the angle has a terminal line that passes through,
-2, 3, namely, x = -2 and y = 3 at that spot

so... now we know what "x" is, "y" is, and of course "r" is 1
thus
`\bf sin(\theta)=\cfrac{y}{r} \\ % cosine cos(\theta)=\cfrac{x}{r} \\ % tangent tan(\theta)=\cfrac{y}{x} \\ % cotangent cot(\theta)=\cfrac{x}{y} \\ % cosecant csc(\theta)=\cfrac{r}{y} \\ % secant sec(\theta)=\cfrac{r}{x}`