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Beliebt Rechnen >

integral of (x^2-2x+1)/(x^2)

Lösung

\int \frac{x ^{2} - 2 x + 1}{x ^{2}} d x

Lösung

x - 2 ln ∣ x ∣ - \frac{1}{x} + C

Schritte zur Lösung

\int \frac{x ^{2} - 2 x + 1}{x ^{2}} d x

Multipliziere aus

\frac{x ^{2} - 2 x + 1}{x ^{2}} : 1 - \frac{2}{x} + \frac{1}{x ^{2}}

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

\int 1 d x = x

\int \frac{2}{x} d x = 2 ln ∣ x ∣

\int \frac{1}{x ^{2}} d x = - \frac{1}{x}

= x - 2 ln ∣ x ∣ - \frac{1}{x}

Füge eine Konstante zur Lösung hinzu

= x - 2 ln ∣ x ∣ - \frac{1}{x} + C

Graph

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