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Beliebt Rechnen >

integral of 6x^3(-7-3x^4)^2

Lösung

\int 6 x^{3} (- 7 - 3 x^{4})^{2} d x

Lösung

6 (\frac{49 x ^{4}}{4} + \frac{21 x ^{8}}{4} + \frac{3 x ^{12}}{4}) + C

Schritte zur Lösung

\int 6 x^{3} (- 7 - 3 x^{4})^{2} d x

Entferne die Konstante:

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

= 6 \cdot \int x^{3} (- 7 - 3 x^{4})^{2} d x

- 7 - 3 x^{4} = 7 (- 1 - \frac{3 x ^{4}}{7})

= 6 \cdot \int x^{3} (7 (- 1 - \frac{3 x ^{4}}{7}))^{2} d x

Vereinfache

x^{3} (7 (- 1 - \frac{3 x ^{4}}{7}))^{2} : 49 x^{3} + 42 x^{7} + 9 x^{11}

= 6 \cdot \int 49 x^{3} + 42 x^{7} + 9 x^{11} 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

= 6 (\int 49 x^{3} d x + \int 42 x^{7} d x + \int 9 x^{11} d x)

\int 49 x^{3} d x = \frac{49 x ^{4}}{4}

\int 42 x^{7} d x = \frac{21 x ^{8}}{4}

\int 9 x^{11} d x = \frac{3 x ^{12}}{4}

= 6 (\frac{49 x ^{4}}{4} + \frac{21 x ^{8}}{4} + \frac{3 x ^{12}}{4})

Füge eine Konstante zur Lösung hinzu

= 6 (\frac{49 x ^{4}}{4} + \frac{21 x ^{8}}{4} + \frac{3 x ^{12}}{4}) + C

Graph

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