annapolis02 annapolis02

04-09-2016
Mathematics

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what is a square root of (a-b)^2

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04-09-2016

Hello,

[tex] \sqrt{(a-b)^2}=|a-b| \\ = a-b\ if\ a \ \textgreater\ b \\ =b-a\ if\ a\ \textless \ b [/tex]

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