integral from 1 to infinity of 7/(x^2+9)

Lösung

\int_{1}^{\infty} \frac{7}{x ^{2} + 9} d x

\frac{7 π}{6} - \frac{7}{3} arctan (\frac{1}{3})

Dezimale

2.91444 \dots

Schritte zur Lösung

\int_{1}^{\infty} \frac{7}{x ^{2} + 9} d x

Berechne das unbestimmte Integral:

\int \frac{7}{x ^{2} + 9} d x = \frac{7}{3} arctan (\frac{x}{3}) + C

Berechne die Grenzen:

\int_{1}^{\infty} \frac{7}{x ^{2} + 9} d x = \frac{7 π}{6} - \frac{7}{3} arctan (\frac{1}{3})

= \frac{7 π}{6} - \frac{7}{3} arctan (\frac{1}{3})

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