SOLUTION: Find the distance between the points with polar coordinates (3, 120°) and (0.6, 28°).

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Question 1022513: Find the distance between the points with polar coordinates (3, 120°) and (0.6, 28°).
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Using the law of cosines, we have
c%5E2+=+a%5E2+%2B+b%5E2+-+2ab%2Acos+C
c%5E2+=+3%5E2+%2B+.6%5E2+-+2%283%29%28.6%29cos%28120-28%29
c%5E2+=+9.36+-+3.6%2Acos%2892%29
c%5E2+=+9.4856
and
c = 3.08