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Beliebt Rechnen >

integral of (2+x)/(4x^2-4x-3)

Lösung

\int \frac{2 + x}{4 x ^{2} - 4 x - 3} d x

Lösung

- \frac{3}{16} ln ∣ 2 x + 1 ∣ + \frac{7}{16} ln ∣ 2 x - 3 ∣ + C

Schritte zur Lösung

\int \frac{2 + x}{4 x ^{2} - 4 x - 3} d x

Ermittle den Partialbruch von

\frac{2 + x}{4 x ^{2} - 4 x - 3} : - \frac{3}{8 ( 2 x + 1 )} + \frac{7}{8 ( 2 x - 3 )}

= \int - \frac{3}{8 ( 2 x + 1 )} + \frac{7}{8 ( 2 x - 3 )} d x

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{3}{8 ( 2 x + 1 )} d x + \int \frac{7}{8 ( 2 x - 3 )} d x

\int \frac{3}{8 ( 2 x + 1 )} d x = \frac{3}{16} ln ∣ 2 x + 1 ∣

\int \frac{7}{8 ( 2 x - 3 )} d x = \frac{7}{16} ln ∣ 2 x - 3 ∣

= - \frac{3}{16} ln ∣ 2 x + 1 ∣ + \frac{7}{16} ln ∣ 2 x - 3 ∣

Füge eine Konstante zur Lösung hinzu

= - \frac{3}{16} ln ∣ 2 x + 1 ∣ + \frac{7}{16} ln ∣ 2 x - 3 ∣ + C

Graph

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