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

Lösung

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

2 (ln ∣ x - 3 ∣ - \frac{3}{x - 3}) + C

Schritte zur Lösung

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

Entferne die Konstante:

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

= 2 \cdot \int \frac{x}{( x - 3 ) ^{2}} d x

Wende U-Substitution an

= 2 \cdot \int \frac{u + 3}{u ^{2}} d u

Multipliziere aus

\frac{u + 3}{u ^{2}} : \frac{1}{u} + \frac{3}{u ^{2}}

= 2 \cdot \int \frac{1}{u} + \frac{3}{u ^{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

= 2 (\int \frac{1}{u} d u + \int \frac{3}{u ^{2}} d u)

\int \frac{1}{u} d u = ln ∣ u ∣

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

= 2 (ln ∣ u ∣ - \frac{3}{u})

Setze in

u = x - 3

ein

= 2 (ln ∣ x - 3 ∣ - \frac{3}{x - 3})

Füge eine Konstante zur Lösung hinzu

= 2 (ln ∣ x - 3 ∣ - \frac{3}{x - 3}) + C

n \to 2 lim (\frac{1}{n ^{2}})

x \to 2 + lim (x^{2} - 4)

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

\frac{d}{d x} (6 x^{2} + 5 x)

4 y^{^{''}} - 4 y^{^{'}} + 26 y = 0