SOLUTION: cos(a+b)cos(a-b)

Algebra -> Trigonometry-basics -> SOLUTION: cos(a+b)cos(a-b) Log On

Algebra: TrigonometrySection

Answers archiveAnswers

Click here to see ALL problems on Trigonometry-basics

Question 473044: cos(a+b)cos(a-b)
Answer by Tatiana_Stebko(1539) (Show Source):
You can put this solution on YOUR website!
1) Use formula