limit as x approaches 0 of ((2x^2-x))/x

解答

x \to 0 lim (\frac{( 2 x ^{2} - x )}{x})

- 1

求解步骤

x \to 0 lim (\frac{2 x ^{2} - x}{x})

化简

\frac{2 x ^{2} - x}{x} : 2 x - 1

= x \to 0 lim (2 x - 1)

代入值

x = 0

= 2 \cdot 0 - 1

化简

= - 1

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