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Beliebt Rechnen >

integral of x/((5-4x)^{3/2)}

Lösung

\int \frac{x}{( 5 - 4 x ) ^{\frac{3}{2}}} d x

Lösung

\frac{- 2 x + 5}{4 ( - 4 x + 5 ) ^{\frac{1}{2}}} + C

Schritte zur Lösung

\int \frac{x}{( 5 - 4 x ) ^{\frac{3}{2}}} d x

Wende U-Substitution an

= \int \frac{u - 5}{16 u ^{\frac{3}{2}}} d u

Entferne die Konstante:

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

= \frac{1}{16} \cdot \int \frac{u - 5}{u ^{\frac{3}{2}}} d u

Multipliziere aus

\frac{u - 5}{u ^{\frac{3}{2}}} : \frac{1}{u ^{\frac{1}{2}}} - \frac{5}{u ^{\frac{3}{2}}}

= \frac{1}{16} \cdot \int \frac{1}{u ^{\frac{1}{2}}} - \frac{5}{u ^{\frac{3}{2}}} d u

Wende die Summenregel an:

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

= \frac{1}{16} (\int \frac{1}{u ^{\frac{1}{2}}} d u - \int \frac{5}{u ^{\frac{3}{2}}} d u)

\int \frac{1}{u ^{\frac{1}{2}}} d u = 2 u^{\frac{1}{2}}

\int \frac{5}{u ^{\frac{3}{2}}} d u = - \frac{10}{u ^{\frac{1}{2}}}

= \frac{1}{16} (2 u^{\frac{1}{2}} - (- \frac{10}{u ^{\frac{1}{2}}}))

Setze in

u = 5 - 4 x

ein

= \frac{1}{16} (2 (5 - 4 x)^{\frac{1}{2}} - (- \frac{10}{( 5 - 4 x ) ^{\frac{1}{2}}}))

Vereinfache

\frac{1}{16} (2 (5 - 4 x)^{\frac{1}{2}} - (- \frac{10}{( 5 - 4 x ) ^{\frac{1}{2}}})) : \frac{- 2 x + 5}{4 ( - 4 x + 5 ) ^{\frac{1}{2}}}

= \frac{- 2 x + 5}{4 ( - 4 x + 5 ) ^{\frac{1}{2}}}

Füge eine Konstante zur Lösung hinzu

= \frac{- 2 x + 5}{4 ( - 4 x + 5 ) ^{\frac{1}{2}}} + C

Graph

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