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Beliebt Rechnen >

integral of ((x^2+1)(x^4-x^2+1))/(2x^3)

Lösung

\int \frac{( x ^{2} + 1 ) ( x ^{4} - x ^{2} + 1 )}{2 x ^{3}} d x

Lösung

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

Schritte zur Lösung

\int \frac{( x ^{2} + 1 ) ( x ^{4} - x ^{2} + 1 )}{2 x ^{3}} d x

Entferne die Konstante:

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

= \frac{1}{2} \cdot \int \frac{( x ^{2} + 1 ) ( x ^{4} - x ^{2} + 1 )}{x ^{3}} d x

Multipliziere aus

\frac{( x ^{2} + 1 ) ( x ^{4} - x ^{2} + 1 )}{x ^{3}} : x^{3} + \frac{1}{x ^{3}}

= \frac{1}{2} \cdot \int x^{3} + \frac{1}{x ^{3}} 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

= \frac{1}{2} (\int x^{3} d x + \int \frac{1}{x ^{3}} d x)

\int x^{3} d x = \frac{x ^{4}}{4}

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

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

Füge eine Konstante zur Lösung hinzu

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

Graph

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