What is the value of sin(90°) on the unit circle?
Unit Circle Values, Reference and Coterminal Angles

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Mathematics
•
10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
1
2.
FLASHCARD QUESTION
Front
What is the value of cos(30°) on the unit circle?
Back
√3/2
3.
FLASHCARD QUESTION
Front
What is a reference angle?
Back
The acute angle formed by the terminal side of an angle and the x-axis.
4.
FLASHCARD QUESTION
Front
What is the reference angle for 277°?
Back
63°
5.
FLASHCARD QUESTION
Front
What is the value of sin(0°) on the unit circle?
Back
0
6.
FLASHCARD QUESTION
Front
What is the value of cos(0°) on the unit circle?
Back
1
7.
FLASHCARD QUESTION
Front
What is the value of sin(180°) on the unit circle?
Back
0
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