Angles in the Unit Circle

Practice Questions

Trigonometry › Angles in the Unit Circle

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1

Give the exact value.

Consider the unit circle. What is the value of the given trigonometric function?

$\tan \frac{2\pi}{3}$

2

What are the ways to write 360o and 720o in radians?

3

Which of the following is not an angle in the unit circle?

4

What is the equivalent of $72^{\circ}$ , in radians?

5

What is the value of ?

6

What is ?

7

Which of the following is NOT a special angle on the unit circle?

8

If $0\leq x\leq\pi$ and $cos(5x)=\frac{-1}{2}$ , then =

9

What is the value of $\sin(\pi/6)$ from the unit circle?

10

What is

$\arcsin\left(-\frac{1}{2}\right)$ ,

using the unit circle?

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