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Beliebt Rechnen >

limit as x approaches 1+of 1/(x-1)-1/(ln(x))

Lösung

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

Lösung

- \frac{1}{2}

+1

Dezimale

- 0.5

Schritte zur Lösung

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

Vereinfache

\frac{1}{x - 1} - \frac{1}{ln ( x )} : \frac{ln ( x ) - x + 1}{ln ( x ) ( x - 1 )}

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

Wende das L'Hopital Theorem an

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

Wende das L'Hopital Theorem an

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

Setze den Wert

x = 1

ein

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

Vereinfache

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

= - \frac{1}{2}

Graph

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