limit as x approaches 0 of | 1/(x^3)|

解答

x \to 0 lim (\frac{1}{x ^{3}})

\infty

求解步骤

x \to 0 lim (\frac{1}{x ^{3}})

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{1}{x ^{3}}) = \infty

x \to 0 + lim (\frac{1}{x ^{3}}) = \infty

= \infty

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