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Beliebt Rechnen >

integral of (x^2+12x+12)/(x(x^2-4))

Lösung

\int \frac{x ^{2} + 12 x + 12}{x ( x ^{2} - 4 )} d x

Lösung

- 3 ln ∣ x ∣ - ln ∣ x + 2 ∣ + 5 ln ∣ x - 2 ∣ + C

Schritte zur Lösung

\int \frac{x ^{2} + 12 x + 12}{x ( x ^{2} - 4 )} d x

Ermittle den Partialbruch von

\frac{x ^{2} + 12 x + 12}{x ( x ^{2} - 4 )} : - \frac{3}{x} - \frac{1}{x + 2} + \frac{5}{x - 2}

= \int - \frac{3}{x} - \frac{1}{x + 2} + \frac{5}{x - 2} d x

Wende die Summenregel an:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= - \int \frac{3}{x} d x - \int \frac{1}{x + 2} d x + \int \frac{5}{x - 2} d x

\int \frac{3}{x} d x = 3 ln ∣ x ∣

\int \frac{1}{x + 2} d x = ln ∣ x + 2 ∣

\int \frac{5}{x - 2} d x = 5 ln ∣ x - 2 ∣

= - 3 ln ∣ x ∣ - ln ∣ x + 2 ∣ + 5 ln ∣ x - 2 ∣

Füge eine Konstante zur Lösung hinzu

= - 3 ln ∣ x ∣ - ln ∣ x + 2 ∣ + 5 ln ∣ x - 2 ∣ + C

Graph

Beliebte Beispiele

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\int 16 sin^{2} (x co) s^{2} x d x

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\int 5 tan^{3} (θ) d θ

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