3. Unit Circle

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

$\(\cos\]\theta\)=\(\frac{\sqrt3}{2}\)$; $\(\sin\]\theta\)$ < $0$

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

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

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

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

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

$\(\tan\)765\(\degree\)$

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

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

In Exercises 35–60, find the reference angle for each angle. 160°

In Exercises 35–60, find the reference angle for each angle.

355°

In Exercises 35–60, find the reference angle for each angle.

7𝜋/4

In Exercises 35–60, find the reference angle for each angle.

-150°

In Exercises 35–60, find the reference angle for each angle. 5.5

In Exercises 35–60, find the reference angle for each angle. 553°

In Exercises 35–60, find the reference angle for each angle. 17𝜋 / 6

In Exercises 35–60, find the reference angle for each angle. - 11𝜋 / 4

In Exercises 61–86, use reference angles to find the exact value of each expression. Do not use a calculator. cos 225°

In Exercises 61–86, use reference angles to find the exact value of each expression. Do not use a calculator. sec 240°