SOLUTION: sin 5 pi

Algebra ->  Trigonometry-basics -> SOLUTION: sin 5 pi      Log On


   



Question 572118: sin 5 pi
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
sin (5 pi)
2pi is 1 revolution.
Subtract 2pi repeatedly until the argument is < 2pi
-----
5pi - 2pi = 3pi
3pi - 2pi = pi
-----
sin(5pi) = sin(pi) = 0