integral from 0 to 1 of (ln(x^3))/x

Lösung

\int_{0}^{1} \frac{ln ( x ^{3} )}{x} d x

divergiert

Schritte zur Lösung

\int_{0}^{1} \frac{ln ( x ^{3} )}{x} d x

Wende U-Substitution an

= \int_{0}^{1} \frac{ln ( u )}{3 u} d u

Entferne die Konstante:

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

= \frac{1}{3} \cdot \int_{0}^{1} \frac{ln ( u )}{u} d u

Wende die partielle Integration an

= \frac{1}{3} [ln (u) - \int \frac{1 - ln ( u )}{u} d u]_{0}^{1}

\int \frac{1 - ln ( u )}{u} d u = - \frac{( 1 - ln ( u ) ) ^{2}}{2}

= \frac{1}{3} [ln (u) - (- \frac{( 1 - ln ( u ) ) ^{2}}{2})]_{0}^{1}

Vereinfache

\frac{1}{3} [ln (u) - (- \frac{( 1 - ln ( u ) ) ^{2}}{2})]_{0}^{1} : \frac{1}{3} [\frac{ln ^{2} ( u ) + 1}{2}]_{0}^{1}

= \frac{1}{3} [\frac{ln ^{2} ( u ) + 1}{2}]_{0}^{1}

Berechne die Grenzen:

divergiert

= divergiert

\int_{0}^{1} x^{3} (1 - x) d x

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