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प्रश्न
Find the area of the region bounded by the curve y = x2, the X−axis and the given lines x = 0, x = 3
उत्तर
Let A be the required area.
Consider the equation y = x2 
∴ A = `int_0^3 y "d"x`
= `int_0^3 x^2 "d"x`
= `[x^3/3]_0^3`
= `1/3(3^3 - 0)`
= 9 sq.units
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