What is the definition of the unit circle?
Unit Circle
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Mathematics
•
11th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The unit circle is a circle with a radius of 1 centered at the origin (0,0) in the coordinate plane.
2.
FLASHCARD QUESTION
Front
What are the coordinates of the point on the unit circle at an angle of 0 radians?
Back
(1, 0)
3.
FLASHCARD QUESTION
Front
What is the value of cos(π/2)?
Back
0
4.
FLASHCARD QUESTION
Front
What is the value of sin(π/2)?
Back
1
5.
FLASHCARD QUESTION
Front
What is the value of cos(π)?
Back
-1
6.
FLASHCARD QUESTION
Front
What is the value of sin(π)?
Back
0
7.
FLASHCARD QUESTION
Front
What are the coordinates of the point on the unit circle at an angle of π/4?
Back
(√2/2, √2/2)
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