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महाराष्ट्र राज्य शिक्षण मंडळएचएससी वाणिज्य (इंग्रजी माध्यम) इयत्ता १२ वी

Choose the correct alternative from the following. ∫x2(3)x3dx = - Mathematics and Statistics

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प्रश्न

Choose the correct alternative from the following.

`int "x"^2 (3)^("x"^3) "dx"` =

पर्याय

  • `(3)^("x"^3) + "c"`

  • `(3)^("x"^3)/(3 * log 3) + "c"`

  • `log 3 (3)^("x"^3)` + c

  • `"x"^2 (3)^("x"^3) + "c"`

MCQ
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उत्तर

`(3)^("x"^3)/(3 * log 3) + "c"`

Explanation:

Let I = `int "x"^2 * (3)^("x"^3) "dx"`

Put x3 = t

∴ `3"x"^2 "dx" = "dt"`

∴ `"x"^2 "dx" = 1/3 "dt"`

∴ I = `1/3 int 3^"t" * "dt"`

`= 1/3 * 3^"t"/log 3` + c

`= (3)^("x"^3)/(3 log 3)` + c

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पाठ 5: Integration - MISCELLANEOUS EXERCISE - 5 [पृष्ठ १३७]

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बालभारती Mathematics and Statistics 1 (Commerce) [English] Standard 12 Maharashtra State Board
पाठ 5 Integration
MISCELLANEOUS EXERCISE - 5 | Q I. 3) | पृष्ठ १३७

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