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Geometry & Trigonometry
Circles
AP Precalculus
Unit 3: Trigonometric and Polar Functions
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π/6
1/2
π/4
√2/2
π/3
√3/2
π/2
1
2π/3
3π/4
5π/6
π
7π/6
-1/2
5π/4
-√2/2
4π/3
-√3/2
3π/2
-1
5π/3
7π/4
11π/6