sin 105 = sin (60+45) = sin60cos45 + cos60sin45
sin 105 = ((sqrt(3)/2)((sqrt(2)/2)) + ((1/2)((sqrt(2)/2)))
sin 105 = (sqrt(6) + sqrt(2)) / 4
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0.96593 (rounded)
SQRT(3)/4 - 1/4
It is: sin(62) = 0.8829475929.
It is:- sin(40) = 0.6427876097
42.00