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Find the following integrals: ∫x3+3x+4xdx

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प्रश्न

Find the following integrals:

`int (x^3 + 3x + 4)/sqrtx dx`

योग
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उत्तर

Let I = `int (x^3 + 3x + 4)/sqrtx` dx

`I = int (x^(5/2) + 3x^(1/2) + 4x^(-(1)/2))` dx

`I = int x^(5/2)  dx + 3 int x^(1/2)  dx + 4 int x^(-(1)/2)  dx`

`I = 2/7  x^(7/2) + 3 xx 2/3  x^(5/2) + 4 xx 2x^(1/2) + C`

`I = 2/7 x^(7/2) + 2x^(3/2) + 8 sqrtx + C`

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अध्याय 7: Integrals - Exercise 7.1 [पृष्ठ २९९]

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एनसीईआरटी Mathematics Part 1 and 2 [English] Class 12
अध्याय 7 Integrals
Exercise 7.1 | Q 12 | पृष्ठ २९९

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