unit circle
Flashcard
•
Mathematics
•
11th Grade - University
•
Practice Problem
•
Hard
Standards-aligned
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12 questions
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1.
FLASHCARD QUESTION
Front
What is the unit circle?
Back
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 at 0° on the unit circle?
Back
(1, 0)
Tags
CCSS.HSF.TF.A.2
3.
FLASHCARD QUESTION
Front
What are the coordinates of the point at 90° on the unit circle?
Back
(0, 1)
Tags
CCSS.HSF.TF.A.2
4.
FLASHCARD QUESTION
Front
What are the coordinates of the point at 180° on the unit circle?
Back
(-1, 0)
Tags
CCSS.HSF.TF.A.2
5.
FLASHCARD QUESTION
Front
What are the coordinates of the point at 270° on the unit circle?
Back
(0, -1)
Tags
CCSS.HSF.TF.A.2
6.
FLASHCARD QUESTION
Front
What is the value of sin(30°)?
Back
1/2
Tags
CCSS.HSG.SRT.C.7
7.
FLASHCARD QUESTION
Front
What is the value of sin(45°)?
Back
√2/2
Tags
CCSS.HSF.TF.A.2
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