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Beliebt Rechnen >

integral of ((2x+3))/(x^3+x^2-2x)

Lösung

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

Lösung

- \frac{3}{2} ln ∣ x ∣ + \frac{5}{3} ln ∣ x - 1 ∣ - \frac{1}{6} ln ∣ x + 2 ∣ + C

Schritte zur Lösung

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

Ermittle den Partialbruch von

\frac{2 x + 3}{x ^{3} + x ^{2} - 2 x} : - \frac{3}{2 x} + \frac{5}{3 ( x - 1 )} - \frac{1}{6 ( x + 2 )}

= \int - \frac{3}{2 x} + \frac{5}{3 ( x - 1 )} - \frac{1}{6 ( 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}{2 x} d x + \int \frac{5}{3 ( x - 1 )} d x - \int \frac{1}{6 ( x + 2 )} d x

\int \frac{3}{2 x} d x = \frac{3}{2} ln ∣ x ∣

\int \frac{5}{3 ( x - 1 )} d x = \frac{5}{3} ln ∣ x - 1 ∣

\int \frac{1}{6 ( x + 2 )} d x = \frac{1}{6} ln ∣ x + 2 ∣

= - \frac{3}{2} ln ∣ x ∣ + \frac{5}{3} ln ∣ x - 1 ∣ - \frac{1}{6} ln ∣ x + 2 ∣

Füge eine Konstante zur Lösung hinzu

= - \frac{3}{2} ln ∣ x ∣ + \frac{5}{3} ln ∣ x - 1 ∣ - \frac{1}{6} ln ∣ x + 2 ∣ + C

Graph

Beliebte Beispiele

derivative of 2cos(x+sin^2(x))

\frac{d}{d x} (2 cos (x) + sin^{2} (x))

(\partial)/(\partial x)(|xy|^{1/2})

\frac{\partial}{\partial x} (∣ x y ∣^{\frac{1}{2}})

normal y= 1/x ,(2, 1/2)

n or ma l y = \frac{1}{x}, (2, \frac{1}{2})

integral of 5x^2-4/x+a

\int 5 x^{2} - \frac{4}{x} + a d x

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\int (1 - x)^{2} d x