limit as x approaches 0 of (ln(x))/3

解答

x \to 0 lim (\frac{ln ( x )}{3})

不存在

求解步骤

x \to 0 lim (\frac{ln ( x )}{3})

若

x \to a^{-} lim f (x) \neq = x \to a^{+} lim f (x)

则极限不存在

x \to 0 + lim (\frac{ln ( x )}{3}) = - \infty

x \to 0 - lim (\frac{ln ( x )}{3}) =

不存在

= 不存在

\frac{\partial}{\partial y} (\frac{y + x}{y - x})

x \to 4 - lim (\frac{1}{x ^{2} - 3 x - 4})

\int \frac{( x - 1 )}{x ^{2}} e^{x} d x

d er i v a t i v e y = (2 x - 9)^{4} (x^{2} + x + 1)^{5}

\frac{d}{d x} (x^{2} (\frac{2}{x ^{2}} + \frac{5}{x ^{3}}))