SOLUTION: What is the exact value of the trigonometric function: Sin 240 degrees?

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Question 24014: What is the exact value of the trigonometric function:
Sin 240 degrees?
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
240 degrees is in the third quadrant, where the sin of the angle is negative.

Subtracting 180 degrees from 240 degrees, you can see that the reference angle is 240-180 = 60 degrees.

Sin of 60 degrees is %28sqrt%283%29%29%2F2.

Therefore, sin 240 degrees = -%28sqrt%283%29%29%2F2

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