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Beliebt Rechnen >

derivative of ln(7x^2+9y^2)

Lösung

\frac{d}{d x} (ln (7 x^{2} + 9 y^{2}))

Lösung

\frac{14 x + 18 y \frac{d y}{d x}}{7 x ^{2} + 9 y ^{2}}

Schritte zur Lösung

\frac{d}{d x} (ln (7 x^{2} + 9 y^{2}))

Wende die Kettenregel an:

\frac{1}{7 x ^{2} + 9 y ^{2}} \frac{d}{d x} (7 x^{2} + 9 y^{2})

= \frac{1}{7 x ^{2} + 9 y ^{2}} \frac{d}{d x} (7 x^{2} + 9 y^{2})

\frac{d}{d x} (7 x^{2} + 9 y^{2}) = 14 x + 18 y \frac{d y}{d x}

= \frac{1}{7 x ^{2} + 9 y ^{2}} (14 x + 18 y \frac{d y}{d x})

Vereinfache

\frac{1}{7 x ^{2} + 9 y ^{2}} (14 x + 18 y \frac{d y}{d x}) : \frac{14 x + 18 y \frac{d y}{d x}}{7 x ^{2} + 9 y ^{2}}

= \frac{14 x + 18 y \frac{d y}{d x}}{7 x ^{2} + 9 y ^{2}}

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