SOLUTION: I'm struggling to find the solution for the square root of the expression X squared plus Y squared. Can someone help?

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Question 884785: I'm struggling to find the solution for the square root of the expression X squared plus Y squared. Can someone help?
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
It seems like something is missing. All you're given is and that's it?
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