Cos330

Cos330

Input
cos(330°)
Exact result
sqrt(3)/2
Decimal approximation
0.866025403784438646763723170752936183471402626905190314027…
Reference triangle for angle 330°
width | cos(330 °) = sqrt(3)/2~~0.866025
height | sin(330 °) = -1/2 = -0.5
Continued fraction
[0; 1, 6, 2^_]

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