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Joint equation of two lines both paralle...

Joint equation of two lines both parallel to Y-axis and each at a distance of 3 units from it is

A

`x^(2)-9=0`

B

`y^(2)-9=0`

C

`x^(2)-y^(2)=9`

D

`y^(2)+9=0`

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The correct Answer is:
A
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