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Area of the region bounded by x2 = 16y, y = 1 and y = 4 and the Y-axis, lying in the first quadrant is _______.

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Question

Area of the region bounded by x2 = 16y, y = 1 and y = 4 and the Y-axis, lying in the first quadrant is _______.

Options

  • 63 sq. units

  • `(3)/(56)"sq. units"`

  • `(56)/(3)"sq. units"`

  • `(63)/(7)"sq. units"`

MCQ
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Solution

Area of the region bounded by x2 = 16y, y = 1 and y = 4 and the Y-axis, lying in the first quadrant is `bbunderline((56)/(3)"sq. units")`.

Explanation:


Required area = `int_1^4x*dy`

= `int_1^4 4sqrt(y)*dy`

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

= `(8)/(3)[(4)^(3/2) - (1)^(3/2)]`

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

= `(56)/(3)"sq.units"`.

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Chapter 7: Applications of Definite Integration - Miscellaneous Exercise 7 [Page 157]

APPEARS IN

Balbharati Mathematics and Statistics 1 (Commerce) [English] Standard 12 Maharashtra State Board
Chapter 7 Applications of Definite Integration
Miscellaneous Exercise 7 | Q 1.3 | Page 157

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