मराठी

Integrate the functions: (x3-1)13x5

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प्रश्न

Integrate the functions:

`(x^3 - 1)^(1/3) x^5`

बेरीज
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उत्तर

Let  `I = int (x^3 - 1)^(1/3) .x^5 dx`

On multiplying the numerator and denominator by 3

`I = 1/3 int (x^3 - 1)^(1/3).3x^2 . x^3` dx

Put x3 - 1 = t 

3x2 dx = dt

Also, x3 = t + 1

∴ `I = 1/3 int t^(1/3) (t + 1) dt`

`= 1/3 [3/7 t ^(7/3) + 3/4 t^(4/3)] + C = 1/7 t^(7/3) + 1/4 t^(4/3)  C`

`= 1/7 (x^3 - 1)^(7/3) + 1/4 (x^3 - 1)^(4/3) + C`

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पाठ 7: Integrals - Exercise 7.2 [पृष्ठ ३०४]

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एनसीईआरटी Mathematics Part 1 and 2 [English] Class 12
पाठ 7 Integrals
Exercise 7.2 | Q 12 | पृष्ठ ३०४

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