limit as x approaches 0 of (2/(x+2)-1)/x

解答

x \to 0 lim (\frac{\frac{2}{x + 2} - 1}{x})

- \frac{1}{2}

十进制

- 0.5

求解步骤

x \to 0 lim (\frac{\frac{2}{x + 2} - 1}{x})

化简

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

= x \to 0 lim (- \frac{1}{x + 2})

代入值

x = 0

= - \frac{1}{0 + 2}

化简

= - \frac{1}{2}

e^{t^{2}} y^{^{'}} + t + t y^{2} = 0

x \to 0 + lim (5 x^{2} ln (x))

d er i v a t i v e f (x) = 4 x^{4}

s l o p e in t erce pt (5.4) (- 1.6)

\int - x e^{x} d x