derivative of \sqrt[3]{(x^2+1/(x^2-1)})

Lösung

\frac{d}{d x} (3 \frac{x ^{2} + 1}{x ^{2} - 1})

- \frac{4 x}{3 ( x ^{2} + 1 ) ^{\frac{2}{3}} ( x ^{2} - 1 ) ^{\frac{4}{3}}}

Schritte zur Lösung

\frac{d}{d x} (3 \frac{x ^{2} + 1}{x ^{2} - 1})

Wende die Kettenregel an:

\frac{1}{3 ( \frac{x ^{2} + 1}{x ^{2} - 1} ) ^{\frac{2}{3}}} \frac{d}{d x} (\frac{x ^{2} + 1}{x ^{2} - 1})

= \frac{1}{3 ( \frac{x ^{2} + 1}{x ^{2} - 1} ) ^{\frac{2}{3}}} \frac{d}{d x} (\frac{x ^{2} + 1}{x ^{2} - 1})

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

= \frac{1}{3 ( \frac{x ^{2} + 1}{x ^{2} - 1} ) ^{\frac{2}{3}}} (- \frac{4 x}{( x ^{2} - 1 ) ^{2}})

Vereinfache

\frac{1}{3 ( \frac{x ^{2} + 1}{x ^{2} - 1} ) ^{\frac{2}{3}}} (- \frac{4 x}{( x ^{2} - 1 ) ^{2}}) : - \frac{4 x}{3 ( x ^{2} + 1 ) ^{\frac{2}{3}} ( x ^{2} - 1 ) ^{\frac{4}{3}}}

= - \frac{4 x}{3 ( x ^{2} + 1 ) ^{\frac{2}{3}} ( x ^{2} - 1 ) ^{\frac{4}{3}}}

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