SOLUTION: Please help with this: Find the value without using a calculator. sin -2π/3 Thank you in advance.

Algebra ->  Trigonometry-basics -> SOLUTION: Please help with this: Find the value without using a calculator. sin -2π/3 Thank you in advance.      Log On


   

Question 652868: Please help with this:
Find the value without using a calculator.
sin -2π/3
Thank you in advance.
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Find the value without using a calculator.
sin -2π/3=-√3/2 (in quadrant III where sin<0)