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Solve the following : Find the area of the region bounded by the curve y = x2 and the line y = 10.

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Question

Solve the following :

Find the area of the region bounded by the curve y = x2 and the line y = 10.

Sum
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Solution

Given equation of the curve is
y = x2
∴ x = `sqrt(y)`    ...[∵ In first quadrant, x> 0]

Required area = area of the region ORQPO
= 2 (area of the region ORQO)

= `2 int_0^10x*dy`

= `2int_0^10 y^(1/2)*dy`

= `2[y^(3/2)/(3/2)]_0^10`

= `(4)/(3)[(10)^(3/2) - 0]`

= `(4)/(3)(10sqrt(10))`

= `(40sqrt(10))/(3)"sq.units"`.

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Chapter 7: Applications of Definite Integration - Miscellaneous Exercise 7 [Page 158]

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Balbharati Mathematics and Statistics 1 (Commerce) [English] Standard 12 Maharashtra State Board
Chapter 7 Applications of Definite Integration
Miscellaneous Exercise 7 | Q 4.3 | Page 158

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