What is the Unit Circle?
Unit Circle
Flashcard
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Mathematics
•
9th - 12th Grade
•
Easy
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1.
FLASHCARD QUESTION
Front
Back
A circle with a radius of 1 centered at the origin of a coordinate plane, used to define trigonometric functions.
2.
FLASHCARD QUESTION
Front
What is the value of sin 0°?
Back
0
3.
FLASHCARD QUESTION
Front
What is the value of cos 0°?
Back
1
4.
FLASHCARD QUESTION
Front
What is the value of sin 90°?
Back
1
5.
FLASHCARD QUESTION
Front
What is the value of cos 90°?
Back
0
6.
FLASHCARD QUESTION
Front
In which quadrants is cosine positive?
Back
The 1st and 4th quadrants.
7.
FLASHCARD QUESTION
Front
In which quadrants is sine positive?
Back
The 1st and 2nd quadrants.
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