3. Unit Circle

For each expression, identify which coterminal angle to use & determine the exact value of the expression.

$\(\sin\)\(\frac{7\pi}{3}\)$

What is the reference angle for a $240°$ angle?

Identify the reference angle of each given angle.

210°

Which of the following pairs of angles have the same reference angle?

Which expression can be used to determine the reference angle for an angle $\theta$ in standard position if $\theta >180°$ but $\theta <360°$?

Which equation can be used to determine the reference angle for an angle $\theta$ in standard position?

Which set of ordered pairs represents angles in standard position that share the same reference angle?

Which of the following pairs of angles have the same reference angle?

If $\theta$ is an angle in standard position such that $\theta >180°$ and $\theta <360°$, which equation can be used to determine the reference angle $r$?

Identify what angle, $\(\theta\)$ , satisfies the following conditions.

$\(\tan\)\(\theta\)=-1$; $\(\cos\)\(\theta\)$ > $0$

Identify the reference angle of each given angle.

$\(\frac{7\pi}{4}\)$ rad

Identify what angle, $\(\theta\)$ , satisfies the following conditions.

$\(\sin\)\(\theta\)=\(\frac\)12$; $\(\tan\)\(\theta\)$ < $0$

For each expression, identify which coterminal angle to use & determine the exact value of the expression.

$\(\cos\[\left\)(-\(\frac{10\pi}{4}\]\right\))$