SOLUTION: 2 theta, given sin theta = radical 5/7 and cos theta>0

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Question 956381: 2 theta, given sin theta = radical 5/7 and cos theta>0
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
2 theta, given sin theta = radical 5/7 and cos theta>0
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sin%28t%29+=+sqrt%285%2F7%29
t =~ 57.69 degs
2t = 115.38 degs