x+sqrt3.y=2sqrt3 is tangent to a curve a...

`x+sqrt3.y=2sqrt3` is tangent to a curve at `((3sqrt3)/2 ,1/2)` then curve can be

A

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

B

`2x^2 +18y^2=9`

C

`y^2=x/(6sqrt3)`

D

`x^2+y^2=7`

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The correct Answer is:

A

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