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Beliebt Rechnen >

integral of x/(1-2x)

Lösung

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

Lösung

\frac{1}{4} (1 - 2 x - ln ∣ 1 - 2 x ∣) + C

Schritte zur Lösung

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

Wende U-Substitution an

= \int \frac{u - 1}{4 u} d u

Entferne die Konstante:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= \frac{1}{4} \cdot \int \frac{u - 1}{u} d u

Multipliziere aus

\frac{u - 1}{u} : 1 - \frac{1}{u}

= \frac{1}{4} \cdot \int 1 - \frac{1}{u} d u

Wende die Summenregel an:

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

= \frac{1}{4} (\int 1 d u - \int \frac{1}{u} d u)

\int 1 d u = u

\int \frac{1}{u} d u = ln ∣ u ∣

= \frac{1}{4} (u - ln ∣ u ∣)

Setze in

u = 1 - 2 x

ein

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

Füge eine Konstante zur Lösung hinzu

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

Graph

Beliebte Beispiele

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x \to 1 lim (3 + f (x))

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\int t^{2} e^{- 4 t} d t

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\frac{d}{d x} (\frac{4 x}{7 x - 2})

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integral of x^2ln(9x)

\int x^{2} ln (9 x) d x