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Beliebt Rechnen >

derivative (x^2-1)/(x^2+4)

Lösung

ableitung von

\frac{x ^{2} - 1}{x ^{2} + 4}

Lösung

\frac{10 x}{( x ^{2} + 4 ) ^{2}}

Schritte zur Lösung

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

Wende die Quotientenregel an:

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

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

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

\frac{d}{d x} (x^{2} + 4) = 2 x

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

Multipliziere aus

2 x (x^{2} + 4) - 2 x (x^{2} - 1) : 10 x

= \frac{10 x}{( x ^{2} + 4 ) ^{2}}

Graph

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