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Question

Find the area inside the circle x22x+y24y+1=0 and outside the ellipse x22x+4y216y+13=0:

A
4πsq.units
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B
πsq.units
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C
2πsq.units
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D
π/2sq.units
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Solution

The correct option is A 2πsq.units
Circle
x22x+y24y+1=0
(x1)2+(y2)2=4
Ellipse
x22x+4y216y+13=0
(x1)2+4(y2)2=4
From the figure,
The required answer = Area of circle Area of ellipse
=π22π(1)(2)
=2π
350540_260720_ans.png

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