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Question

Area of region enclosed by ellipse x2+4y2=1 is ______

A
π2
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B
π
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C
2π
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D
4π
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Solution

The correct option is A π2
x2+4y2=1
From, x21+y21=1,a2=1,b2=12
a=1,b=12
Now as per the illustration
area of the ellipse x2a2+y2b2=1 (where a>b) is πab
Required area is π(1)(12)
Area=π2
884385_958617_ans_4235d1b5b9b3451d9f546c29510c5574.PNG

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