SOLUTION: find the exact value of sin 20 given that cos 0 =1213 and 0 is in quadrant 1

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Question 1043830: find the exact value of sin 20 given that cos 0 =1213 and 0 is in quadrant 1
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
That's a big value of the cosine.
Confirm that it's 1213.