What is the definition of the unit circle?
5.5 Trig Values of any angles

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A circle with a radius of 1 centered at the origin (0,0) in the coordinate plane.
2.
FLASHCARD QUESTION
Front
What is the value of sin(0°)?
Back
0
3.
FLASHCARD QUESTION
Front
What is the value of cos(90°)?
Back
0
4.
FLASHCARD QUESTION
Front
What is the value of tan(45°)?
Back
1
5.
FLASHCARD QUESTION
Front
What is the reference angle for 150 degrees?
Back
30 degrees
6.
FLASHCARD QUESTION
Front
In which quadrants is sin θ positive?
Back
Quadrants I and II.
7.
FLASHCARD QUESTION
Front
In which quadrants is cos θ negative?
Back
Quadrants II and III.
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