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An ellipse is drawn by taking a diameter...

An ellipse is drawn by taking a diameter of the circle `(x)^2+""y^2=""1` as its semiminor axis and a diameter of the circle `x^2+""(y""""2)^2=""4` as its semi-major axis. If the centre of the ellipse is the origin and its axes are the coordinate axes, then the equation of the ellipse is (1) `4x^2+""y^2=""4` (2) `x^2+""4y^2=""8` (3) `4x^2+""y^2=""8` (4) `x^2+""4y^2=""16`

Text Solution

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`(x-1)^2 + y^2 = 1`
`r=1`
`d=2`
`b=2`
and `x^2 + (y-2)^2 = 4`
`r=2`
`d= 4`
`a=4`
...
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