SOLUTION: please help me thank you. write the product as a sum using a product to sum identity. 2sin(x+6y)cos(x-6y).

Algebra ->  Trigonometry-basics -> SOLUTION: please help me thank you. write the product as a sum using a product to sum identity. 2sin(x+6y)cos(x-6y).      Log On


   

Question 1085917: please help me thank you. write the product as a sum using a product to sum identity. 2sin(x+6y)cos(x-6y).
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
The trig identity we'll use is

which is from this list of trig identities (see the "Product to Sum Formulas" section on page 2)
In this case,
= alpha = x+6y
= beta = x-6y

So this means,