integral from 0 to 4 of pi(16x^2-x^4)

Lösung

\int_{0}^{4} π (16 x^{2} - x^{4}) d x

π \frac{2048}{15}

Dezimale

428.93211 \dots

Schritte zur Lösung

\int_{0}^{4} π (16 x^{2} - x^{4}) d x

Entferne die Konstante:

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

= π \cdot \int_{0}^{4} 16 x^{2} - x^{4} 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

= π (\int_{0}^{4} 16 x^{2} d x - \int_{0}^{4} x^{4} d x)

\int_{0}^{4} 16 x^{2} d x = \frac{1024}{3}

\int_{0}^{4} x^{4} d x = \frac{1024}{5}

= π (\frac{1024}{3} - \frac{1024}{5})

Füge

\frac{1024}{3} - \frac{1024}{5}

zusammen:

\frac{2048}{15}

= π \frac{2048}{15}

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