derivative (sqrt(s)-7)/(sqrt(s)+3)

Lösung

ableitung von

\frac{s - 7}{s + 3}

\frac{5}{s ( s + 3 ) ^{2}}

Schritte zur Lösung

\frac{d}{d s} (\frac{s - 7}{s + 3})

Wende die Quotientenregel an:

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

= \frac{\frac{d}{d s} ( s - 7 ) ( s + 3 ) - \frac{d}{d s} ( s + 3 ) ( s - 7 )}{( s + 3 ) ^{2}}

\frac{d}{d s} (s - 7) = \frac{1}{2 s}

\frac{d}{d s} (s + 3) = \frac{1}{2 s}

= \frac{\frac{1}{2 s} ( s + 3 ) - \frac{1}{2 s} ( s - 7 )}{( s + 3 ) ^{2}}

Vereinfache

\frac{\frac{1}{2 s} ( s + 3 ) - \frac{1}{2 s} ( s - 7 )}{( s + 3 ) ^{2}} : \frac{5}{s ( s + 3 ) ^{2}}

= \frac{5}{s ( s + 3 ) ^{2}}

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