limit as x approaches 0 of (18)/(x^2)

解答

x \to 0 lim (\frac{18}{x ^{2}})

\infty

求解步骤

x \to 0 lim (\frac{18}{x ^{2}})

如果

x \to a - lim f (x) = x \to a + lim f (x) = L

则

x \to a lim f (x) = L

x \to 0 - lim (\frac{18}{x ^{2}}) = \infty

x \to 0 + lim (\frac{18}{x ^{2}}) = \infty

= \infty

\frac{\partial}{\partial x} (3 x^{2} - 24 y)

\frac{d}{d x} ((x - 1)^{\frac{1}{3}} (x + 2)^{\frac{2}{3}})

\frac{d y}{d x} + \frac{x ^{2}}{y} = 0

x \to 0 lim (x^{21 x})

\frac{d y}{d x} = \frac{x - y}{x + 2 y}