SOLUTION: Might I ask as to the decimal value of the inverse of cosine, 3 square root of 2 over 7 square root of two?

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Question 820039: Might I ask as to the decimal value of the inverse of cosine, 3 square root of 2 over 7 square root of two?
Answer by jerryguo41(197) About Me  (Show Source):
You can put this solution on YOUR website!
3sqrt%282%29%2F7sqrt%282%29=3%2F7
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cos%5E-1%283%2F7%29 =
1.128radians,
4.269radians,
64.6degrees,
244.6degrees