What is the unit circle?
UNIT CIRCLE
Flashcard
•
Mathematics
•
10th - 11th 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. It is used to define trigonometric functions.
2.
FLASHCARD QUESTION
Front
What are the coordinates of the point on the unit circle at 0 degrees?
Back
(1, 0)
3.
FLASHCARD QUESTION
Front
What is the value of sine at 90 degrees?
Back
1
4.
FLASHCARD QUESTION
Front
What is the value of cosine at 0 degrees?
Back
1
5.
FLASHCARD QUESTION
Front
What is the value of sine at 180 degrees?
Back
0
6.
FLASHCARD QUESTION
Front
What is the value of cosine at 360 degrees?
Back
1
7.
FLASHCARD QUESTION
Front
What is the value of sine at 270 degrees?
Back
-1
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