Unit Circle Practice
Flashcard
•
Mathematics
•
11th Grade
•
Practice Problem
•
Hard
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16 questions
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1.
FLASHCARD QUESTION
Front
What is the value of sin(120°)?
Back
√3/2
2.
FLASHCARD QUESTION
Front
What is the value of cos(120°)?
Back
-1/2
3.
FLASHCARD QUESTION
Front
What is the value of cos(π)?
Back
-1
4.
FLASHCARD QUESTION
Front
What is the value of sin(135°)?
Back
√2/2
5.
FLASHCARD QUESTION
Front
What is the value of sin(7π/4)?
Back
-√2/2
6.
FLASHCARD QUESTION
Front
Define the unit circle.
Back
A circle with a radius of 1 centered at the origin of a coordinate plane, used to define trigonometric functions.
7.
FLASHCARD QUESTION
Front
What is the relationship between sine and cosine on the unit circle?
Back
sin(θ) = y-coordinate, cos(θ) = x-coordinate of the point on the unit circle corresponding to angle θ.
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