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Beliebt Rechnen >

limit as x approaches 4-of (x+2)/(x-4)

Lösung

x \to 4 - lim (\frac{x + 2}{x - 4})

Lösung

- \infty

Schritte zur Lösung

x \to 4 - lim (\frac{x + 2}{x - 4})

\frac{x + 2}{x - 4} = (x + 2) \frac{1}{x - 4}

= x \to 4 - lim ((x + 2) \frac{1}{x - 4})

x \to a lim [f (x) \cdot g (x)] = x \to a lim f (x) \cdot x \to a lim g (x)

mit Einschränkung des unbestimmten Ausdrucks

= x \to 4 - lim (x + 2) \cdot x \to 4 - lim (\frac{1}{x - 4})

x \to 4 - lim (x + 2) = 6

x \to 4 - lim (\frac{1}{x - 4}) = - \infty

= 6 (- \infty)

Wende die Unendlichkeitseigenschaft an:

c \cdot (- \infty) = - \infty

= - \infty

Graph

Beliebte Beispiele

limit as x approaches 0 of (log_{e}(1+3x^2))/(x(e^x-1))

x \to 0 lim (\frac{lo g _{e} ( 1 + 3 x ^{2} )}{x ( e ^{x} - 1 )})

derivative of sin^2(3x-2)

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

derivative of 4arcsin(x)

\frac{d}{d x} (4 arcsin (x))

(dy)/(dx)=2x(1+y)

\frac{d y}{d x} = 2 x (1 + y)

integral of 3sqrt(x^2)

\int 3 x^{2} d x