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Beliebt Rechnen >

integral ((x+3))/((x^2-x+6))

Lösung

integral

\frac{( x + 3 )}{( x ^{2} - x + 6 )}

Lösung

\frac{1}{2} ln 4 x^{2} - 4 x + 24 + \frac{7}{23} arctan (\frac{1}{23} (2 x - 1)) + C

Schritte zur Lösung

\int \frac{x + 3}{x ^{2} - x + 6} d x

Multipliziere aus

\frac{x + 3}{x ^{2} - x + 6} : \frac{x}{x ^{2} - x + 6} + \frac{3}{x ^{2} - x + 6}

Wende die Summenregel an:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= \int \frac{x}{x ^{2} - x + 6} d x + \int \frac{3}{x ^{2} - x + 6} d x

\int \frac{x}{x ^{2} - x + 6} d x = \frac{1}{2} ln 4 x^{2} - 4 x + 24 + \frac{1}{23} arctan (\frac{2 x - 1}{23})

\int \frac{3}{x ^{2} - x + 6} d x = \frac{6}{23} arctan (\frac{2 x - 1}{23})

= \frac{1}{2} ln 4 x^{2} - 4 x + 24 + \frac{1}{23} arctan (\frac{2 x - 1}{23}) + \frac{6}{23} arctan (\frac{2 x - 1}{23})

Vereinfache

\frac{1}{2} ln 4 x^{2} - 4 x + 24 + \frac{1}{23} arctan (\frac{2 x - 1}{23}) + \frac{6}{23} arctan (\frac{2 x - 1}{23}) : \frac{1}{2} ln 4 x^{2} - 4 x + 24 + \frac{7}{23} arctan (\frac{1}{23} (2 x - 1))

= \frac{1}{2} ln 4 x^{2} - 4 x + 24 + \frac{7}{23} arctan (\frac{1}{23} (2 x - 1))

Füge eine Konstante zur Lösung hinzu

= \frac{1}{2} ln 4 x^{2} - 4 x + 24 + \frac{7}{23} arctan (\frac{1}{23} (2 x - 1)) + C

Graph

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