Let from a point A (h,k) chord of contac...

Let from a point A (h,k) chord of contacts are drawn to the ellipse `x^2+2y^2=6` such that all these chords touch the ellipse `x^2+4y^2=4,` then locus of the point A is

`4x^2+9y^2=36`

`x^2+y^2=4`

`x^2-y^2=9`

`x^2+y^2=9`

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