∫ x^4+2x^3-9x^2+x eching

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

Baholash

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

Yechim qadamlari

Summani muddatma-muddat integratsiya qiling.

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

Har bir shartda konstantani qavsdan tashqariga oling.

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

k\neq -1 uchun integral \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} boʻlgani uchun, \int x^{4}\mathrm{d}x integralni \frac{x^{5}}{5} bilan almashtiring.

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

k\neq -1 uchun integral \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} boʻlgani uchun, \int x^{3}\mathrm{d}x integralni \frac{x^{4}}{4} bilan almashtiring. 2 ni \frac{x^{4}}{4} marotabaga ko'paytirish.

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

k\neq -1 uchun integral \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} boʻlgani uchun, \int x^{2}\mathrm{d}x integralni \frac{x^{3}}{3} bilan almashtiring. -9 ni \frac{x^{3}}{3} marotabaga ko'paytirish.

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

k\neq -1 uchun integral \int x^{k}\mathrm{d}x=\frac{x^{k+1}}{k+1} boʻlgani uchun, \int x\mathrm{d}x integralni \frac{x^{2}}{2} bilan almashtiring.

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

Агар F\left(x\right)f\left(x\right) ning dastlabki holati boʻlsa, u holatda f\left(x\right) ning barcha dastlabki holatlari toʻplami F\left(x\right)+C tarafidan belgilanadi. Shu sababli natijaga C\in \mathrm{R} integrallash konstantasini qoʻshing.

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

x ga nisbatan hosilani topish

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