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Sine and Cosine Using Reference Angles

Authored by Anthony Clark

Mathematics

10th Grade

CCSS covered

Sine and Cosine Using Reference Angles
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8 questions

Show all answers

1.

DROPDOWN QUESTION

1 min • 1 pt

Look at YOUR unit circle. What is the reference angle for 4π3\frac{4\pi}{3}

π3\frac{\pi}{3}  

π4\frac{\pi}{4}  

π6\frac{\pi}{6}  

π2\frac{\pi}{2}  

Tags

CCSS.HSF.TF.A.2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Choose the correct ratio.

cos(33)=x/14

sin(33)=x/14

cos(33)=14/x

sin(33)=14/x

Tags

CCSS.HSG.SRT.C.6

3.

DROPDOWN QUESTION

1 min • 1 pt

Look at YOUR unit circle. What is the reference angle for 4π3\frac{4\pi}{3}

π3\frac{\pi}{3}  

π4\frac{\pi}{4}  

π6\frac{\pi}{6}  

π2\frac{\pi}{2}  

Tags

CCSS.HSF.TF.A.2

4.

DROPDOWN QUESTION

1 min • 1 pt

Look at YOUR unit circle. What is the reference angle for 7π4\frac{7\pi}{4}

π4\frac{\pi}{4}  

π6\frac{\pi}{6}  

π2\frac{\pi}{2}  

π3\frac{\pi}{3}  

Tags

CCSS.HSF.TF.A.2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Choose the correct ratio.

cos(33)=x/14

sin(33)=x/14

cos(33)=14/x

sin(33)=14/x

Tags

CCSS.HSG.SRT.C.6

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Choose the correct ratio.

cos(33)=x/14

sin(33)=x/14

cos(33)=14/x

sin(33)=14/x

Tags

CCSS.HSG.SRT.C.6

7.

DROPDOWN QUESTION

1 min • 1 pt

Look at YOUR unit circle. What is the reference angle for 7π4\frac{7\pi}{4}

π4\frac{\pi}{4}  

π6\frac{\pi}{6}  

π2\frac{\pi}{2}  

π3\frac{\pi}{3}  

Tags

CCSS.HSF.TF.A.2

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