Unit Circle
Flashcard
•
Mathematics
•
10th Grade
•
Hard
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Unit Circle?
Back
The Unit Circle is a circle with a radius of 1 centered at the origin (0,0) in the coordinate plane, used to define trigonometric functions.
Tags
CCSS.HSF.TF.A.2
2.
FLASHCARD QUESTION
Front
What are the coordinates of the point on the Unit Circle at 0°?
Back
(1, 0)
Tags
CCSS.HSF.TF.A.2
3.
FLASHCARD QUESTION
Front
What is the value of sin(90°)?
Back
1
Tags
CCSS.HSF.TF.A.2
4.
FLASHCARD QUESTION
Front
What is the value of cos(90°)?
Back
0
Tags
CCSS.HSF.TF.A.2
5.
FLASHCARD QUESTION
Front
What is the value of sin(180°)?
Back
0
Tags
CCSS.HSF.TF.A.2
6.
FLASHCARD QUESTION
Front
What is the value of cos(180°)?
Back
-1
Tags
CCSS.HSF.TF.A.2
7.
FLASHCARD QUESTION
Front
What are the coordinates of the point on the Unit Circle at 45°?
Back
(√2/2, √2/2)
Tags
CCSS.HSF.TF.A.2
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