SOLUTION: i dont understand why sin(30+x) + sin(30-x) = sin30.cosx + cos30.sinx Please help me .

SOLUTION: i dont understand why sin(30+x) + sin(30-x) = sin30.cosx + cos30.sinx Please help me .

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Question 757946: i dont understand why sin(30+x) + sin(30-x) = sin30.cosx + cos30.sinx
Please help me .
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
Sum And Difference Formulas.
A good online reference is oakroadsystems.com. Look for "Trig Without Tears".

AND

JUST FOLLOW THE FORMULAS.

and

And you are trying to get help with the sum of those two:

SIMPLIFY.

THE ANSWER____________________THE ANSWER RESULT
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