SOLUTION: To prove sin(theta+60)+sin(theta-60)=sin(theta)

SOLUTION: To prove sin(theta+60)+sin(theta-60)=sin(theta)

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Question 1019431: To prove
sin(theta+60)+sin(theta-60)=sin(theta)

Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
To prove

expand sum and difference formulas and get

You can see that the 2nd and 4th terms cancel out...we get

Since cos 60 = 1/2, we get

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