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

Lösung

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

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

Dezimale

- 20.60128 \dots

Schritte zur Lösung

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

Entferne die Konstante:

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

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

Wende U-Substitution an

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

Multipliziere aus

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

= - 2 \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

= - 2 (\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}

= - 2 (\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}

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

x \to 3 - lim (\frac{∣ x - 3 ∣}{x + 3})

s l o p e 3 t - t^{2} (0)

\frac{d}{d t} (5 t e^{- t})

\frac{\partial}{\partial y} (\frac{( x ^{2} )}{( x - y ) ^{2}})

x \to 2 lim (6 2 - x)