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Integrate the function: x31-x8 - Mathematics

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प्रश्न

Integrate the function:

`x^3/(sqrt(1-x^8)`

बेरीज
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उत्तर

Let `I = x^3/(sqrt(1 - x^8))` dx

`= 1/4 int (4x^3)/(sqrt (1 - (x^4)^2))`

On substituting x4 = t

4x3 dx = dt

⇒ `x^3 = 1/4 dt`

Hence, `I = 1/4 int dt/sqrt(1 - t^2)`

`= 1/4 sin^-1 t + C`

`= 1/4 sin^-1 (x^4) + C`

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पाठ 7: Integrals - Exercise 7.12 [पृष्ठ ३५२]

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

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