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

The area of the region bounded by y2 = 4x, the X-axis and the lines x = 1 and x = 4 is _______.

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प्रश्न

The area of the region bounded by y2 = 4x, the X-axis and the lines x = 1 and x = 4 is _______.

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उत्तर

The area of the region bounded by y2 = 4x, the X-axis and the lines x = 1 and x = 4 is  `underlinebb(28/3)` sq. units.


Required area = `2int_1^4y*dx`

= `2int_1^4 2sqrt(x)*dx`

= `2[x^(3/2)/(3/2)]_1^4`

= `2[(2x^(3/2))/(3)]_1^4`

Substituting the values we get

= `2 = ((2(4)^(3/2))/3 - (2(1)^(3/2))/3)`

= `4 (8/3 - 1/3)`

= `4 (7/3)`

= `28/3` sq. units.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 7: Applications of Definite Integration - Miscellaneous Exercise 7 [पृष्ठ १५८]

APPEARS IN

बालभारती Mathematics and Statistics 1 (Commerce) [English] Standard 12 Maharashtra State Board
पाठ 7 Applications of Definite Integration
Miscellaneous Exercise 7 | Q 2.5 | पृष्ठ १५८

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