swayrobinson1049 swayrobinson1049

19-10-2017
Mathematics

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The sum of a number and its reciprocal is 13/6. find the number

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tynollette tynollette

19-10-2017

suppose the number is x, its reciprocal is 1/x
x+1/x=13/6
(x^2+1)/x=13/6
6(x^2+1)=13x
6x^2-13x+6=0
(3x-2)(2x-3)=0
x=2/3 or x=3/2

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