SOLUTION: true or false: sin(-85)=-sin85

Algebra ->  Trigonometry-basics -> SOLUTION: true or false: sin(-85)=-sin85      Log On


   

Question 381912: true or false: sin(-85)=-sin85
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
true or false: sin(-85)=-sin85
=====
That is a common know identity: sin(-x) = -sin(x)
==========================
Cheers,
Stan H.