integral from 0 to 1 of x^3e^{sqrt(x)}

Soluzione

\int_{0}^{1} x^{3} e^{x} d x

2 (- 1854 e + 5040)

Decimale

0.61098 \dots

Fasi della soluzione

\int_{0}^{1} x^{3} e^{x} d x

Applicare la sostituzione u

= \int_{0}^{1} \frac{e ^{6 u} u ^{\frac{1}{3}}}{3} d u

Porta fuori la costante:

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

= \frac{1}{3} \cdot \int_{0}^{1} e^{6 u} u^{\frac{1}{3}} d u

Applicare la sostituzione u

= \frac{1}{3} \cdot \int_{0}^{1} 6 e^{v} v^{7} d v

Porta fuori la costante:

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

= \frac{1}{3} \cdot 6 \cdot \int_{0}^{1} e^{v} v^{7} d v

Applicare la sostituzione u

= \frac{1}{3} \cdot 6 \cdot \int_{1}^{e} ln^{7} (w) d w

Applica l'Integrazione per Parti

= \frac{1}{3} \cdot 6 [w ln^{7} (w) - \int 7 ln^{6} (w) d w]_{1}^{e}

\int 7 ln^{6} (w) d w = 7 (w ln^{6} (w) - 6 (w ln^{5} (w) - 5 (w ln^{4} (w) - 4 (w ln^{3} (w) - 3 (w ln^{2} (w) - 2 (w ln (w) - w))))))

= \frac{1}{3} \cdot 6 [w ln^{7} (w) - 7 (w ln^{6} (w) - 6 (w ln^{5} (w) - 5 (w ln^{4} (w) - 4 (w ln^{3} (w) - 3 (w ln^{2} (w) - 2 (w ln (w) - w))))))]_{1}^{e}

Semplificare

\frac{1}{3} \cdot 6 [w ln^{7} (w) - 7 (w ln^{6} (w) - 6 (w ln^{5} (w) - 5 (w ln^{4} (w) - 4 (w ln^{3} (w) - 3 (w ln^{2} (w) - 2 (w ln (w) - w))))))]_{1}^{e} : 2 [w ln^{7} (w) - 7 (w ln^{6} (w) - 6 (w ln^{5} (w) - 5 (w ln^{4} (w) - 4 (w ln^{3} (w) - 3 (w ln^{2} (w) - 2 (w ln (w) - w))))))]_{1}^{e}

= 2 [w ln^{7} (w) - 7 (w ln^{6} (w) - 6 (w ln^{5} (w) - 5 (w ln^{4} (w) - 4 (w ln^{3} (w) - 3 (w ln^{2} (w) - 2 (w ln (w) - w))))))]_{1}^{e}

Calcola i limiti:

- 1854 e + 5040

= 2 (- 1854 e + 5040)

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