integral from-1 to 2 of (3u-8)(u+3)

Lösung

\int_{- 1}^{2} (3 u - 8) (u + 3) d u

- \frac{123}{2}

Dezimale

- 61.5

Schritte zur Lösung

\int_{- 1}^{2} (3 u - 8) (u + 3) d u

Wende die partielle Integration an

= [(3 u - 8) (\frac{u ^{2}}{2} + 3 u) - \int 3 (\frac{u ^{2}}{2} + 3 u) d u]_{- 1}^{2}

\int 3 (\frac{u ^{2}}{2} + 3 u) d u = 3 (\frac{u ^{3}}{6} + \frac{3 u ^{2}}{2})

= [(3 u - 8) (\frac{u ^{2}}{2} + 3 u) - 3 (\frac{u ^{3}}{6} + \frac{3 u ^{2}}{2})]_{- 1}^{2}

Berechne die Grenzen:

- \frac{123}{2}

= - \frac{123}{2}