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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Evaluate the following integrals: ∫2x-74x-1.dx

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प्रश्न

Evaluate the following integrals: `int (2x - 7)/sqrt(4x - 1).dx`

बेरीज
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उत्तर

`int (2x - 7)/sqrt(4x - 1).dx`

= `(1)/(2)int(2(2x - 7))/sqrt(4x - 1).dx`

= `(1)/(2)int((4x - 1) - 13)/sqrt(4x - 1).dx`

= `(1)/(2)int(((4x - 1))/sqrt(4x - 1) - 13/sqrt(4x - 1)).dx`

= `(1)/(2)int (4x - 1)^(1/2).dx - 13/2 int(4x - 1)^(-1/2).dx`

= `(1)/(2)((4x - 1)^(3/2))/((4)(3/2)) - (13)/(2).((4x - 1)^(1/2))/((4)(1/2)) + c`

= `(1)/(12)(4x - 1)^(3/2) - (13)/(4)sqrt(4x - 1) + c`

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पाठ 3: Indefinite Integration - Exercise 3.1 [पृष्ठ १०२]

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