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Beliebt Rechnen >

integral of (10x^2-19x+6)/(x^3-3x^2+2x)

Lösung

\int \frac{10 x ^{2} - 19 x + 6}{x ^{3} - 3 x ^{2} + 2 x} d x

Lösung

3 ln ∣ x ∣ + 3 ln ∣ x - 1 ∣ + 4 ln ∣ x - 2 ∣ + C

Schritte zur Lösung

\int \frac{10 x ^{2} - 19 x + 6}{x ^{3} - 3 x ^{2} + 2 x} d x

Ermittle den Partialbruch von

\frac{10 x ^{2} - 19 x + 6}{x ^{3} - 3 x ^{2} + 2 x} : \frac{3}{x} + \frac{3}{x - 1} + \frac{4}{x - 2}

= \int \frac{3}{x} + \frac{3}{x - 1} + \frac{4}{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{3}{x - 1} d x + \int \frac{4}{x - 2} d x

\int \frac{3}{x} d x = 3 ln ∣ x ∣

\int \frac{3}{x - 1} d x = 3 ln ∣ x - 1 ∣

\int \frac{4}{x - 2} d x = 4 ln ∣ x - 2 ∣

= 3 ln ∣ x ∣ + 3 ln ∣ x - 1 ∣ + 4 ln ∣ x - 2 ∣

Füge eine Konstante zur Lösung hinzu

= 3 ln ∣ x ∣ + 3 ln ∣ x - 1 ∣ + 4 ln ∣ x - 2 ∣ + C

Graph

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