Moleporocky247
Moleporocky247 Moleporocky247
  • 02-06-2016
  • Mathematics
contestada

given (x)=-x²+2x,determine
F'(x) using first principle

Respuesta :

caylus
caylus caylus
  • 02-06-2016
Hello,
which principle?

f(x)=-x²+2x
==>f'(x)= -2x+2

You mean maybe this

[tex] \lim_{h \to 0} \frac{f(x+h)-f(x) } {h}[/tex]


f(x+h)=-(x+h)²+2(x+h)= -(x²+2hx+h²)+2x+2h
f(x)=-x²+2x

[tex] \lim_{h \to 0} \frac{f(x+h)-f(x) } {h}=\lim_{h \to 0}\frac{-2hx-h^2+2h}{h}=\lim_{h \to 0}\frac{-2x-h+2}{1}=-2x+2[/tex]

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