SOLUTION: Use a double- or half-angle formula to determine the value of the trigonometric function. sin(-61π/12)

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Question 499480: Use a double- or half-angle formula to determine the value of the trigonometric function.
sin(-61π/12)
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
First we'll simplify the expression using our knowledge of sines
of negative angles, double angle formula, and pi=%22180%B0%22:



      2
360)915
    720
    195 







sqrt%286%29%2F4-sqrt%282%29%2F4+=+%28sqrt%286%29-sqrt%282%29%29%2F4



Edwin