Answer
$sin\theta=\frac{\sqrt 3}{2}$,
$cos\theta=\frac{1}{2}$,
$tan\theta=\sqrt 3$,
$cot\theta=\frac{\sqrt 3}{3}$,
$sec\theta=2$,
$csc\theta=\frac{2\sqrt 3}{3}$.
Work Step by Step
Use the given figure, we have $r=4,x=2,y=\sqrt {16-4}=2\sqrt 3$.
$sin\theta=\frac{\sqrt 3}{2}$,
$cos\theta=\frac{1}{2}$,
$tan\theta=\sqrt 3$,
$cot\theta=\frac{\sqrt 3}{3}$,
$sec\theta=2$,
$csc\theta=\frac{2\sqrt 3}{3}$.
