Quiz about Trigonometry

Question 1

![](http://admin.getprephub.com/media/editor/t1_20220823202736905234.png)
the angle measures of $$	riangle J K L$$ are in radians. What is the value of $$\cos \frac{\pi}{3}$$ (Find an exact value or round to the nearest hundredth)?

Accepted Answer

Covalent bond

Answer

$$0.5$$

Answer

$$0.866$$

Answer

$$1.57$$

Answer

None of the above

Question 2

The angle measures of $$ 	riangle R T S$$ are in radians.Find the value of $$\sin \frac{\pi}{3}$$ (Enter an exact value or round to the nearest hundredth)?

![](http://admin.getprephub.com/media/editor/t2_20220823202942518305.png)

Accepted Answer

Covalent bond

Answer

$$ 0.87$$

Answer

$$1.1$$

Answer

$$0.5$$

Answer

$$0$$

Question 3

Point $${A}$$ is on the following unit circle. What are the coordinates of point $${A}$$ ?

![](http://admin.getprephub.com/media/editor/t3_20220823203126334683.png)

Enter an exact value or round to the nearest hundredth.

Accepted Answer

Covalent bond

Answer

$$(\frac{1}{2}, \frac{\sqrt{3}}{2})$$

Answer

$$2(\frac{1}{2}, \frac{1}{2})$$

Answer

$$(0, \frac{1}{2})$$

Answer

$$(\frac{1}{2}, \frac{1}{2})$$

Question 4

Find the value of $$\sin (\frac{2 \pi}{3})$$

Accepted Answer

Covalent bond

Answer

$$ \frac{\sqrt{3}}{2}$$

Answer

$$\frac{1}{2}$$

Answer

$$\frac{1}{\sqrt{2}}$$

Answer

$$1$$

Question 5

Find the value of $$\cos 150^{\circ}$$

Accepted Answer

Covalent bond

Answer

$$-\frac{\sqrt{3}}{2}$$

Answer

$$\frac{1}{2}$$

Answer

$$\frac{1}{2}$$

Answer

$$ \frac{\sqrt{3}}{2}$$

Trigonometry Precalculus Maths Problems and Solutions

Many students find Trigonometry for Precalculus particularly challenging. Strengthen your concepts and gain confidence for your exams by solving free questions for Trigonometry from for Precalculus preparation.