katelljaffret katelljaffret

07-04-2017
Mathematics

contestada

find the value of the coefficient of 1/x in the expansion (2x-1/x)^5

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T06great T06great

07-04-2017

ans
(2x-1/x)^5
=-48x^3+80x-40/x^2+10/x^3-1/x^5

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