SOLUTION: How to find sin120

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Question 1104953: How to find sin120
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
sin 120=sin (90+30)
sin (a+b)=sin a* cos b+cos a*sin b
This is sin 90*cos 30+ cos 90*sin 30; cos 90=0, so second term is 0.
sin 90 is 1, so sin 120=cos 30=sqrt(3)/2