derivative of (9+2x-4sqrt(x)/x)

Lösung

\frac{d}{d x} (\frac{9 + 2 x - 4 x}{x})

\frac{2 x - 9}{x ^{2}}

Schritte zur Lösung

\frac{d}{d x} (\frac{9 + 2 x - 4 x}{x})

Wende die Quotientenregel an:

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

= \frac{\frac{d}{d x} ( 9 + 2 x - 4 x ) x - \frac{d x}{d x} ( 9 + 2 x - 4 x )}{x ^{2}}

\frac{d}{d x} (9 + 2 x - 4 x) = - \frac{2}{x} + 2

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

= \frac{( - \frac{2}{x} + 2 ) x - 1 \cdot ( 9 + 2 x - 4 x )}{x ^{2}}

Vereinfache

\frac{( - \frac{2}{x} + 2 ) x - 1 \cdot ( 9 + 2 x - 4 x )}{x ^{2}} : \frac{2 x - 9}{x ^{2}}

= \frac{2 x - 9}{x ^{2}}

\int 5 x e^{- 5 x} d x

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