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Beliebt Rechnen >

integral from 0 to 2 of-7x^3sqrt(x^2+4)

Lösung

\int_{0}^{2} - 7 x^{3} x^{2} + 4 d x

Lösung

- 7 \cdot \frac{64 2 + 64}{15}

+1

Dezimale

- 72.10451 \dots

Schritte zur Lösung

\int_{0}^{2} - 7 x^{3} x^{2} + 4 d x

Entferne die Konstante:

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

= - 7 \cdot \int_{0}^{2} x^{3} x^{2} + 4 d x

Wende U-Substitution an

= - 7 \cdot \int_{2}^{22} (u^{2} - 4) u^{2} d u

Multipliziere aus

(u^{2} - 4) u^{2} : u^{4} - 4 u^{2}

= - 7 \cdot \int_{2}^{22} u^{4} - 4 u^{2} 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

= - 7 (\int_{2}^{22} u^{4} d u - \int_{2}^{22} 4 u^{2} d u)

\int_{2}^{22} u^{4} d u = \frac{128 2 - 32}{5}

\int_{2}^{22} 4 u^{2} d u = \frac{4 ( 16 2 - 8 )}{3}

= - 7 (\frac{128 2 - 32}{5} - \frac{4 ( 16 2 - 8 )}{3})

Füge

\frac{128 2 - 32}{5} - \frac{4 ( 16 2 - 8 )}{3}

zusammen:

\frac{64 2 + 64}{15}

= - 7 \cdot \frac{64 2 + 64}{15}

Graph

Beliebte Beispiele

derivative of (1+4x^{3/2})

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

integral from 0 to infinity of 2e^{-2x}

\int_{0}^{\infty} 2 e^{- 2 x} d x

integral from-8 to 8 of 1/(\sqrt[3]{x)}

\int_{- 8}^{8} \frac{1}{3 x} d x

implicit (dy)/(dx),y=7x^8

im pl i c i t \frac{d y}{d x}, y = 7 x^{8}

integral of 3sqrt(x)-4x

\int 3 x - 4 x d x