Unit Circle - Degrees/Radians/Sine/Cosine - Learn by heart...
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cos(3π/2)
0
cos(90°)
0
cos(π/2)
0
sin(0°)
0
sin(2π)
0
sin(π)
0
0°
0π
cos(0°)
1
cos(2π)
1
sin(90°)
1
sin(π/2)
1
cos(60°)
1/2
cos(π/3)
1/2
sin(30°)
1/2
sin(π/6)
1/2
360°
2π
270°
3π/2
180°
π
90°
π/2
60°
π/3
45°
π/4
30°
π/6
cos(π)
−1
sin(3π/2)
−1
cos(45°)
√2/2
cos(π/4)
√2/2
sin(45°)
√2/2
sin(π/4)
√2/2
cos(30°)
√3/2
cos(π/6)
√3/2
sin(60°)
√3/2
sin(π/3)
√3/2