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Beliebt Rechnen >

integral of (4x^2-13x+12)/(x(x-2)^2)

Lösung

\int \frac{4 x ^{2} - 13 x + 12}{x ( x - 2 ) ^{2}} d x

Lösung

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

Schritte zur Lösung

\int \frac{4 x ^{2} - 13 x + 12}{x ( x - 2 ) ^{2}} d x

Multipliziere aus

\frac{4 x ^{2} - 13 x + 12}{x ( x - 2 ) ^{2}} : \frac{4 x ^{2}}{x ( x - 2 ) ^{2}} - \frac{13 x}{x ( x - 2 ) ^{2}} + \frac{12}{x ( x - 2 ) ^{2}}

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{4 x ^{2}}{x ( x - 2 ) ^{2}} d x - \int \frac{13 x}{x ( x - 2 ) ^{2}} d x + \int \frac{12}{x ( x - 2 ) ^{2}} d x

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

\int \frac{13 x}{x ( x - 2 ) ^{2}} d x = - \frac{13}{x - 2}

\int \frac{12}{x ( x - 2 ) ^{2}} d x = 12 (\frac{1}{4} ln ∣ x ∣ - \frac{1}{4} ln ∣ x - 2 ∣ - \frac{1}{2 ( x - 2 )})

= 4 (ln ∣ x - 2 ∣ - \frac{2}{x - 2}) - (- \frac{13}{x - 2}) + 12 (\frac{1}{4} ln ∣ x ∣ - \frac{1}{4} ln ∣ x - 2 ∣ - \frac{1}{2 ( x - 2 )})

Vereinfache

4 (ln ∣ x - 2 ∣ - \frac{2}{x - 2}) - (- \frac{13}{x - 2}) + 12 (\frac{1}{4} ln ∣ x ∣ - \frac{1}{4} ln ∣ x - 2 ∣ - \frac{1}{2 ( x - 2 )}) : ln ∣ x - 2 ∣ - \frac{1}{x - 2} + 3 ln ∣ x ∣

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

Füge eine Konstante zur Lösung hinzu

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

Graph

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