SOLUTION: Express as a product 1-2sina-cos2a I know formulas but not how to apply

Algebra ->  Trigonometry-basics -> SOLUTION: Express as a product 1-2sina-cos2a I know formulas but not how to apply      Log On


   

Question 1126040: Express as a product
1-2sina-cos2a
I know formulas but not how to apply
Answer by Alex.33(110) About Me  (Show Source):
You can put this solution on YOUR website!
1-2sina-cos2a=1-2sina-(1-2sin^2(a))=2sin^2(a)-2sina=2sina(sina-1)
This is the most simplified and good-looking product form I can reach. Hope that helps!