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Question

Find the area bounded by curves {(x,y):yx2 and y|x|

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Solution

Given the curve y=x2 ...(i)
and equation of line y = |x|
In first quadrant, the equation of the line is y = x and in second quadrant, the equation of line is y = - x.
The points of intersection of the parabola and line are (-1, 1) and (1, 1). As the area to be found is symmetrical about Y-axis.
Required area = 2 (Area of shaded region in the first quadrant)
=210(xx2)dx=2[10x dx10x2dx]=2([x22]10[x33]10)=2[(120)(130)]=2[1213]=2[16]=13sq unit


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