Trigonometric Values of Common Angles
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17 Terms
1
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0
cos(0) = 1, sin(0) = 0
2
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π/6
cos(π/6) = √3/2, sin(π/6) = 1/2
3
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π/4
cos(π/4) = √2/2, sin(π/4) = √2/2
4
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π/3
cos(π/3) = 1/2, sin(π/3) = √3/2
5
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π/2
cos(π/2) = 0, sin(π/2) = 1
6
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2π/3
cos(2π/3) = -1/2, sin(2π/3) = √3/2
7
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3π/4
cos(3π/4) = -√2/2, sin(3π/4) = √2/2
8
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5π/6
cos(5π/6) = -√3/2, sin(5π/6) = 1/2
9
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π
cos(π) = -1, sin(π) = 0
10
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7π/6
cos(7π/6) = -√3/2, sin(7π/6) = -1/2
11
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5π/4
cos(5π/4) = -√2/2, sin(5π/4) = -√2/2
12
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4π/3
cos(4π/3) = -1/2, sin(4π/3) = -√3/2
13
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3π/2
cos(3π/2) = 0, sin(3π/2) = -1
14
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5π/3
cos(5π/3) = 1/2, sin(5π/3) = -√3/2
15
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7π/4
cos(7π/4) = √2/2, sin(7π/4) = -√2/2
16
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11π/6
cos(11π/6) = √3/2, sin(11π/6) = -1/2
17
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2π
cos(2π) = 1, sin(2π) = 0
Note 
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