∫ 10^-2(3-7x)^2(91+292x)^2 wrt x eching

$$\int 10 ^ { - 2 } ( 3 - 7 x ) ^ { 2 } ( 91 + 292 x ) ^ { 2 } d x$$

Baholash

$$\frac{1044484x^{5}}{125}-\frac{122129x^{4}}{50}-\frac{1058903x^{3}}{300}+\frac{65247x^{2}}{100}+\frac{74529x}{100}+С$$

Yechim qadamlari

-2 daraja ko‘rsatkichini 10 ga hisoblang va \frac{1}{100} ni qiymatni oling.

$$\int \frac{1}{100}\left(3-7x\right)^{2}\left(91+292x\right)^{2}\mathrm{d}x$$

\left(a-b\right)^{2}=a^{2}-2ab+b^{2} binom teoremasini \left(3-7x\right)^{2} kengaytirilishi uchun ishlating.

$$\int \frac{1}{100}\left(9-42x+49x^{2}\right)\left(91+292x\right)^{2}\mathrm{d}x$$

\left(a+b\right)^{2}=a^{2}+2ab+b^{2} binom teoremasini \left(91+292x\right)^{2} kengaytirilishi uchun ishlating.

$$\int \frac{1}{100}\left(9-42x+49x^{2}\right)\left(8281+53144x+85264x^{2}\right)\mathrm{d}x$$

\frac{1}{100} ga 9-42x+49x^{2} ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$\int \left(\frac{9}{100}-\frac{21}{50}x+\frac{49}{100}x^{2}\right)\left(8281+53144x+85264x^{2}\right)\mathrm{d}x$$

\frac{9}{100}-\frac{21}{50}x+\frac{49}{100}x^{2} ga 8281+53144x+85264x^{2} ni ko‘paytirish orqali distributiv xususiyatdan foydalaning va ifoda sifatida birlashtiring.

$$\int \frac{74529}{100}+\frac{65247}{50}x-\frac{1058903}{100}x^{2}-\frac{244258}{25}x^{3}+\frac{1044484}{25}x^{4}\mathrm{d}x$$

Summani muddatma-muddat integratsiya qiling.

$$\int \frac{74529}{100}\mathrm{d}x+\int \frac{65247x}{50}\mathrm{d}x+\int -\frac{1058903x^{2}}{100}\mathrm{d}x+\int -\frac{244258x^{3}}{25}\mathrm{d}x+\int \frac{1044484x^{4}}{25}\mathrm{d}x$$

Har bir shartda konstantani qavsdan tashqariga oling.

$$\int \frac{74529}{100}\mathrm{d}x+\frac{65247\int x\mathrm{d}x}{50}-\frac{1058903\int x^{2}\mathrm{d}x}{100}-\frac{244258\int x^{3}\mathrm{d}x}{25}+\frac{1044484\int x^{4}\mathrm{d}x}{25}$$

\int a\mathrm{d}x=ax umumiy integrallar qoidasi jadvalidan foydalanib, \frac{74529}{100} integralini toping.

$$\frac{74529x}{100}+\frac{65247\int x\mathrm{d}x}{50}-\frac{1058903\int x^{2}\mathrm{d}x}{100}-\frac{244258\int x^{3}\mathrm{d}x}{25}+\frac{1044484\int x^{4}\mathrm{d}x}{25}$$

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{65247}{50} ni \frac{x^{2}}{2} marotabaga ko'paytirish.

$$\frac{74529x}{100}+\frac{65247x^{2}}{100}-\frac{1058903\int x^{2}\mathrm{d}x}{100}-\frac{244258\int x^{3}\mathrm{d}x}{25}+\frac{1044484\int x^{4}\mathrm{d}x}{25}$$

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. -\frac{1058903}{100} ni \frac{x^{3}}{3} marotabaga ko'paytirish.

$$\frac{74529x}{100}+\frac{65247x^{2}}{100}-\frac{1058903x^{3}}{300}-\frac{244258\int x^{3}\mathrm{d}x}{25}+\frac{1044484\int x^{4}\mathrm{d}x}{25}$$

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. -\frac{244258}{25} ni \frac{x^{4}}{4} marotabaga ko'paytirish.

$$\frac{74529x}{100}+\frac{65247x^{2}}{100}-\frac{1058903x^{3}}{300}-\frac{122129x^{4}}{50}+\frac{1044484\int x^{4}\mathrm{d}x}{25}$$

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{1044484}{25} ni \frac{x^{5}}{5} marotabaga ko'paytirish.

$$\frac{74529x}{100}+\frac{65247x^{2}}{100}-\frac{1058903x^{3}}{300}-\frac{122129x^{4}}{50}+\frac{1044484x^{5}}{125}$$

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.

$$\frac{74529x}{100}+\frac{65247x^{2}}{100}-\frac{1058903x^{3}}{300}-\frac{122129x^{4}}{50}+\frac{1044484x^{5}}{125}+С$$

x ga nisbatan hosilani topish

$$\frac{\left(\left(7x-3\right)\left(292x+91\right)\right)^{2}}{100}$$