Answers

2014-03-15T15:49:19+05:30
Easy as weasy:-
sin(15) 
= sin(45-30) 
= sin45 cos30 - cos45 sin30 
= (sqrt(2)/2)(sqrt(3)/2) - (sqrt(2)/2)(1/2) 
= sqrt(2)(sqrt(3) - 1)/4
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