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Beliebt Rechnen >

integral of x/((x+2)^{1/4)}

Lösung

\int \frac{x}{( x + 2 ) ^{\frac{1}{4}}} d x

Lösung

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

Schritte zur Lösung

\int \frac{x}{( x + 2 ) ^{\frac{1}{4}}} d x

Wende U-Substitution an

= \int \frac{u - 2}{u ^{\frac{1}{4}}} d u

Multipliziere aus

\frac{u - 2}{u ^{\frac{1}{4}}} : u^{\frac{3}{4}} - \frac{2}{u ^{\frac{1}{4}}}

= \int u^{\frac{3}{4}} - \frac{2}{u ^{\frac{1}{4}}} 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

= \int u^{\frac{3}{4}} d u - \int \frac{2}{u ^{\frac{1}{4}}} d u

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

\int \frac{2}{u ^{\frac{1}{4}}} d u = \frac{8}{3} u^{\frac{3}{4}}

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

Setze in

u = x + 2

ein

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

Füge eine Konstante zur Lösung hinzu

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

Graph

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