Cos20

Cos20

Input
cos(20°)
Decimal approximation
0.939692620785908384054109277324731469936208134264464633090…
Reference triangle for angle 20°
width | cos(20 °)~~0.939693
height | sin(20 °)~~0.34202
Alternate form
cos(pi/9)
Continued fraction
[0; 1, 15, 1, 1, 2, 1, 1, 3, 1, 2, 1, 1, 5, 2, 1, 1, 2, 19, 18, 3, 1, 27, 162, 1, 2, 3, 1, 1, …]

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