Unit Circle
Authored by Anthony Clark
Mathematics
11th Grade
CCSS covered
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18 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the exact coordinates of 3π/4 on the unit circle?
(−√2∕2, √2∕2)
(−√2∕2, −√2∕2)
(−√3∕2, −√2∕2)
(√2∕2, −√2∕2)
Tags
CCSS.HSF.TF.A.2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Based on your unit circle cos(0o)=
1
0
-1
1/2
Tags
CCSS.HSF.TF.A.2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Based on your unit circle sin(90o)=
1/2
0
-1
1
Tags
CCSS.HSF.TF.A.2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the radius of the unit circle?
0
1
1/2
√2/2
Tags
CCSS.HSF.TF.A.2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the radius of a unit circle?
1
2
1/2
0
Tags
CCSS.HSF.TF.A.2
7.
DRAG AND DROP QUESTION
1 min • 4 pts
Unlike right triangle trigonometry, sine and cosine may be negative. Thinking about how sine, cosine, and tangent relate to (x,y) coordinate pairs on the unit circle, find the quadrants where: cosine is positive: (a) & (b) cosine is negative: (c) & (d)
I
IV
II
III
Tags
CCSS.HSF.TF.A.2
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