18-09-2015
Mathematics

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How long is the line that joins the two points A(1,3) and B(2,2)?

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crisforp crisforp

18-09-2015

AB = [tex] \sqrt{ (1 -2 )^{2} + (3-2)^{2} } = \sqrt{ (-1)^{2} + 1^{2} } = \sqrt{2 ;} [/tex]

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