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Beliebt Rechnen >

integral of (6x)/(\sqrt[4]{x+2)}

Lösung

\int \frac{6 x}{4 x + 2} d x

Lösung

6 (\frac{4}{7} (x + 2)^{\frac{7}{4}} - \frac{8}{3} (x + 2)^{\frac{3}{4}}) + C

Schritte zur Lösung

\int \frac{6 x}{4 x + 2} d x

Entferne die Konstante:

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

= 6 \cdot \int \frac{x}{4 x + 2} d x

Wende U-Substitution an

= 6 \cdot \int \frac{u - 2}{4 u} d u

Multipliziere aus

\frac{u - 2}{4 u} : u^{\frac{3}{4}} - \frac{2}{4 u}

= 6 \cdot \int u^{\frac{3}{4}} - \frac{2}{4 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

= 6 (\int u^{\frac{3}{4}} d u - \int \frac{2}{4 u} d u)

\int u^{\frac{3}{4}} d u = \frac{4}{7} u^{\frac{7}{4}}

\int \frac{2}{4 u} d u = \frac{8}{3} u^{\frac{3}{4}}

= 6 (\frac{4}{7} u^{\frac{7}{4}} - \frac{8}{3} u^{\frac{3}{4}})

Setze in

u = x + 2

ein

= 6 (\frac{4}{7} (x + 2)^{\frac{7}{4}} - \frac{8}{3} (x + 2)^{\frac{3}{4}})

Füge eine Konstante zur Lösung hinzu

= 6 (\frac{4}{7} (x + 2)^{\frac{7}{4}} - \frac{8}{3} (x + 2)^{\frac{3}{4}}) + C

Graph

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