Réitigh ∫ x^4+2x^3-9x^2+x

$$\int x ^ { 4 } + 2 x ^ { 3 } - 9 x ^ { 2 } + x$$

Luacháil

$$\frac{x^{5}}{5}+\frac{x^{4}}{2}-3x^{3}+\frac{x^{2}}{2}+С$$

Céimeanna Réitigh

Measc an tsuim téarma fá téarma.

$$\int x^{4}\mathrm{d}x+\int 2x^{3}\mathrm{d}x+\int -9x^{2}\mathrm{d}x+\int x\mathrm{d}x$$

Fág an leanúnach sna téarmaí as an áireamh.

$$\int x^{4}\mathrm{d}x+2\int x^{3}\mathrm{d}x-9\int x^{2}\mathrm{d}x+\int x\mathrm{d}x$$

Ó \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} fá choinne k\neq -1, athchuir \int x^{4}\mathrm{d}x le \frac{x^{5}}{5}.

$$\frac{x^{5}}{5}+2\int x^{3}\mathrm{d}x-9\int x^{2}\mathrm{d}x+\int x\mathrm{d}x$$

Ó \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} fá choinne k\neq -1, athchuir \int x^{3}\mathrm{d}x le \frac{x^{4}}{4}. Méadaigh 2 faoi \frac{x^{4}}{4}.

$$\frac{x^{5}}{5}+\frac{x^{4}}{2}-9\int x^{2}\mathrm{d}x+\int x\mathrm{d}x$$

Ó \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} fá choinne k\neq -1, athchuir \int x^{2}\mathrm{d}x le \frac{x^{3}}{3}. Méadaigh -9 faoi \frac{x^{3}}{3}.

$$\frac{x^{5}}{5}+\frac{x^{4}}{2}-3x^{3}+\int x\mathrm{d}x$$

Ó \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} fá choinne k\neq -1, athchuir \int x\mathrm{d}x le \frac{x^{2}}{2}.

$$\frac{x^{5}}{5}+\frac{x^{4}}{2}-3x^{3}+\frac{x^{2}}{2}$$

Má tá F\left(x\right) mar frithdhíorthach do f\left(x\right), beidh tacar do frithdhíorthach uile do f\left(x\right) a thabhairt ag F\left(x\right)+C. Mar sin de, cur an comhtháthú leanúnach C\in \mathrm{R} don toradh.

$$\frac{x^{5}}{5}+\frac{x^{4}}{2}-3x^{3}+\frac{x^{2}}{2}+С$$

Difreálaigh w.r.t. x

$$x\left(x^{3}+2x^{2}-9x+1\right)$$