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Find the equation of the director circle...

Find the equation of the director circle of `x^(2)//12-y^(2)//8=1`

A

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

B

`x^(2)+y^(2)=4`

C

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

D

`x^(2)-y^(2)=4`

Text Solution

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The correct Answer is:
B
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