SOLUTION: how do i solve this equation without using a calculator? (cos (12 degrees)(cos (4 degrees) + (sin (12 degrees)(sin (4 degrees)= cos 16 degrees thank you my email is fangirl96

Question 539489: how do i solve this equation without using a calculator?
(cos (12 degrees)(cos (4 degrees) + (sin (12 degrees)(sin (4 degrees)= cos 16 degrees
thank you my email is fangirl96@yahoo.com
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
It's an identity, nothing to solve.

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