17.2 Practice

Evaluate the trigonometric function without using a calculator. Angles are given in degrees.

cos 135

•  $45$  

•  $\frac{\sqrt{2}}{2}$  

•  $-\frac{\sqrt{2}}{2}$  

• -45

Tags

CCSS.HSF.TF.A.2

Evaluate the trigonometric function without using a calculator. Angles are given in degrees.

tan (-30)

• 30

• $-\frac{\sqrt{3}}{3}$

• $\frac{\sqrt{3}}{3}$

• $\frac{\sqrt{3}}{2}$

Tags

CCSS.HSF.TF.A.4

Evaluate the trigonometric function without using a calculator. Angles are given in degrees.

sin 480

• $\frac{\sqrt{3}}{2}$

• 60

• $-\frac{\sqrt{3}}{2}$

• $\frac{\sqrt{3}}{3}$

Tags

CCSS.HSF.TF.A.4

Evaluate the trigonometric function without using a calculator. Angles are given in degrees.

cos 720

• 0

• 1

• -1

Tags

CCSS.HSF.TF.A.4

Evaluate the trigonometric function without using a calculator. Angles are given in degrees.

 $\cos\frac{7\pi}{4}$  

•  $\frac{\sqrt{2}}{2}$  

•  $-\frac{\sqrt{2}}{2}$  

•  $\frac{\sqrt{3}}{3}$  

•  $\frac{\sqrt{3}}{2}$  

Tags

CCSS.HSF.TF.A.2

Evaluate the trigonometric function without using a calculator. Angles are given in degrees.

 $\sin\left(-\frac{\pi}{2}\right)$  

• 1

• 0

• -1

Tags

CCSS.HSF.TF.A.2

Evaluate the trigonometric function without using a calculator. Angles are given in degrees.

 $\tan\left(-\frac{10\pi}{3}\right)$  

• - $\frac{\sqrt{3}}{3}$  

•  $-\sqrt{3}$  

•  $\sqrt{3}$  

•  $\frac{\sqrt{3}}{3}$  

Tags

CCSS.HSF.TF.A.2

Evaluate the trigonometric function without using a calculator. Angles are given in degrees.

 $\tan\ \frac{16\pi}{3}$  

•  $\sqrt{3}$  

•  $\frac{\sqrt{3}}{2}$  

•  $\frac{\sqrt{3}}{3}$  

•  $-\sqrt{3}$  

Tags

CCSS.HSF.TF.A.4

Use a calculator to evaluate the trigonometric function of the angle given in degrees. Round to the nearest hundredths place.

sin 132

• 0.7431

• 0.743

• 0.744

• 0.74

Tags

CCSS.HSF.TF.A.2

Use a calculator to evaluate the trigonometric function of the angle given in degrees. Round to the nearest hundredths place.

cos (-203)

• 0.921

• -0.920

• -0.921

• -0.92

Tags

CCSS.HSF.TF.A.4