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Integrate the function: e3logx(x4+1)-1

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प्रश्न

Integrate the function:

`e^(3log x) (x^4 + 1)^(-1)`

योग
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उत्तर

Let `I = int e^(3 log x) (x^4 + 1)^-1  dx`

`= inte^(log x^3) (x^4 + 1)^-1  dx`

`= int x^3 (x^4 + 1)^-1 dx`

`= intx^3/ (x^4 + 1)  dx`

put x4 = t

⇒ 4x3  dx = dt

∴ `I = 1/4 int dt/ (t + 1)`

`= 1/4 log (t + 1) + C`

`= 1/4 log (x^4 + 1) + C`

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अध्याय 7: Integrals - Exercise 7.12 [पृष्ठ ३५२]

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एनसीईआरटी Mathematics Part 1 and 2 [English] Class 12
अध्याय 7 Integrals
Exercise 7.12 | Q 16 | पृष्ठ ३५२

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