Cos 100

Cos 100

Input
cos(100°)
Exact result
-sin(pi/18)
Decimal approximation
-0.17364817766693034885171662676931479600037567718406938723…
Reference triangle for angle 100°
width | cos(100 °) = -sin(10 °)~~-0.173648
height | sin(100 °) = cos(10 °)~~0.984808
Continued fraction
– [0; 5, 1, 3, 6, 1, 7, 13, 5, 1, 7, 1, 2, 4, 1, 1, 17, 1, 3, 27, 1, 1, 40, 5, 1, 3, 22, 2, 1, …]

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