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24-11-2016
Mathematics

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find f(x+deltax) for f(x) = x^2 -2x-3

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Nirina7 Nirina7

24-11-2016

let be Dx = deltax
if f(x) = x^2 -2x-3, so f( x +Dx) = (x +Dx)² - 2(x +Dx) -3=x² + D²x +2x .Dx - 2x - 2Dx -3

f( x +Dx) =x² + D²x +2(x -1)Dx - 2x -3

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