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Beliebt Rechnen >

integral of (6e^u-u^3(sqrt(u)+1))

Lösung

\int (6 e^{u} - u^{3} (u + 1)) d u

Lösung

6 e^{u} - \frac{2}{9} u^{\frac{9}{2}} - \frac{u ^{4}}{4} + C

Schritte zur Lösung

\int 6 e^{u} - u^{3} (u + 1) d u

Wende U-Substitution an

= \int \frac{6 v - ln ^{3} ( v ) ( ln ( v ) + 1 )}{v} d v

Multipliziere aus

\frac{6 v - ln ^{3} ( v ) ( ln ( v ) + 1 )}{v} : 6 - \frac{ln ^{\frac{7}{2}} ( v )}{v} - \frac{ln ^{3} ( v )}{v}

= \int 6 - \frac{ln ^{\frac{7}{2}} ( v )}{v} - \frac{ln ^{3} ( v )}{v} d v

Wende die Summenregel an:

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

= \int 6 d v - \int \frac{ln ^{\frac{7}{2}} ( v )}{v} d v - \int \frac{ln ^{3} ( v )}{v} d v

\int 6 d v = 6 v

\int \frac{ln ^{\frac{7}{2}} ( v )}{v} d v = \frac{2}{9} ln^{\frac{9}{2}} (v)

\int \frac{ln ^{3} ( v )}{v} d v = \frac{ln ^{4} ( v )}{4}

= 6 v - \frac{2}{9} ln^{\frac{9}{2}} (v) - \frac{ln ^{4} ( v )}{4}

Setze in

v = e^{u}

ein

= 6 e^{u} - \frac{2}{9} ln^{\frac{9}{2}} (e^{u}) - \frac{ln ^{4} ( e ^{u} )}{4}

Vereinfache

6 e^{u} - \frac{2}{9} ln^{\frac{9}{2}} (e^{u}) - \frac{ln ^{4} ( e ^{u} )}{4} : 6 e^{u} - \frac{2}{9} u^{\frac{9}{2}} - \frac{u ^{4}}{4}

= 6 e^{u} - \frac{2}{9} u^{\frac{9}{2}} - \frac{u ^{4}}{4}

Füge eine Konstante zur Lösung hinzu

= 6 e^{u} - \frac{2}{9} u^{\frac{9}{2}} - \frac{u ^{4}}{4} + C

Graph

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