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30 and 60 degrees don't need trig functions. See: https://en.wikipedia.org/wiki/Trigonometric_constants_expressed_in_real_radicals https://en.wikipedia.org/wiki
by pcwalton 7y ago
30 and 60 degrees don't need trig functions. See: https://en.wikipedia.org/wiki/Trigonometric_constants_expressed_in_real_radicals https://en.wikipedia.org/wiki/Trigonometric_constants_expres...