SOLUTION: which sum or difference identity would you use to verify that sin(180 + theta) = -sin(theta)?

Algebra ->  Trigonometry-basics -> SOLUTION: which sum or difference identity would you use to verify that sin(180 + theta) = -sin(theta)?      Log On


   

Question 1012726: which sum or difference identity would you use to verify that sin(180 + theta) = -sin(theta)?
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
sin(a + b) = sin a * cos b + sin b * cos a