Unit circle memorization
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For people to memorize trig
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34 Terms
1
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Cos 0 or 2π
1
2
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Sin 0 or 2π
0
3
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Cos π/6
√3/2
4
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Sin π/6
1/2
5
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Cos π/4
√2/2
6
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Sin π/4
√2/2
7
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Cos π/3
1/2
8
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Sin π/3
√3/2
9
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Cos π/2
0
10
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Sin π/2
1
11
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Cos 2π/3
-1/2
12
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Sin 2π/3
√3/2
13
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Cos 3π/4
-√2/2
14
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Sin 3π/4
√2/2
15
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Cos 5π/6
-√3/2
16
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Sin 5π/6
1/2
17
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Cos π
-1
18
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Sin π
0
19
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Cos 7π/6
-√3/2
20
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Sin 7π/6
-1/2
21
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Cos 5π/4
-√2/2
22
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Sin 5π/4
-√2/2
23
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Cos 4π/3
-1/2
24
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Sin 4π/3
-√3/2
25
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Cos 3π/2
0
26
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Sin 3π/2
-1
27
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Cos 5π/3
1/2
28
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Sin 5π/3
-√3/2
29
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Cos 7π/4
√2/2
30
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Sin 7π/4
-√2/2
31
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Cos 11π/6
√3/2
32
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Sin 11π/6
-1/2
33
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34
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