SOLUTION: i need to find the exact value of sin-210 degrees of the trig function, help?

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Question 698783: i need to find the exact value of sin-210 degrees of the trig function, help?
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
i need to find the exact value of sin-210 degrees of the trig function, help?
-210 deg is like rotating 210 deg counter-clockwise, terminating in quadrant II where the reference angle=30 deg, and sin>0
sin -210º=sin 30º=1/2