derivative f(x)= x/(1-ln(x-2))

Lösung

ableitung von

f (x) = \frac{x}{1 - ln ( x - 2 )}

\frac{2 x - ln ( x - 2 ) ( x - 2 ) - 2}{( x - 2 ) ( 1 - ln ( x - 2 ) ) ^{2}}

Schritte zur Lösung

\frac{d}{d x} (\frac{x}{1 - ln ( x - 2 )})

Wende die Quotientenregel an:

(\frac{f}{g})^{'} = \frac{f ^{'} \cdot g - g ^{'} \cdot f}{g ^{2}}

= \frac{\frac{d x}{d x} ( 1 - ln ( x - 2 ) ) - \frac{d}{d x} ( 1 - ln ( x - 2 ) ) x}{( 1 - ln ( x - 2 ) ) ^{2}}

\frac{d x}{d x} = 1

\frac{d}{d x} (1 - ln (x - 2)) = - \frac{1}{x - 2}

= \frac{1 \cdot ( 1 - ln ( x - 2 ) ) - ( - \frac{1}{x - 2} ) x}{( 1 - ln ( x - 2 ) ) ^{2}}

Vereinfache

\frac{1 \cdot ( 1 - ln ( x - 2 ) ) - ( - \frac{1}{x - 2} ) x}{( 1 - ln ( x - 2 ) ) ^{2}} : \frac{2 x - ln ( x - 2 ) ( x - 2 ) - 2}{( x - 2 ) ( 1 - ln ( x - 2 ) ) ^{2}}

= \frac{2 x - ln ( x - 2 ) ( x - 2 ) - 2}{( x - 2 ) ( 1 - ln ( x - 2 ) ) ^{2}}

t \to 1 lim ((t^{3} + 3)^{4})

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