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TRIG Reference Angles 3
Contributed by: Heseltine
60°
120°
135°
150°
210°
30° is a reference angle for:
225°
240°
300°
315°
330°
30°
120°
135°
150°
210°
60° is a reference angle for:
225°
240°
300°
315°
330°
60°
120°
135°
150°
210°
45° is a reference angle for:
225°
240°
300°
315°
330°
π/3
2π/3
3π/4
5π/6
7π/6
π/6 is a reference angle for:
5π/4
4π/3
5π/3
11π/6
7π/4
π/6
2π/3
3π/4
5π/6
7π/6
π/3 is a reference angle for:
5π/4
4π/3
5π/3
11π/6
7π/4
π/3
2π/3
3π/4
5π/6
7π/6
π/4 is a reference angle for:
5π/4
4π/3
5π/3
11π/6
7π/4
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