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The equation of the circle touching the ...

The equation of the circle touching the lines `|y|` = x and having radius `sqrt(2)` is :

A

`x^(2)+y^(2)+4x+2=0`

B

`x^(2)+y^(2)-6x+7=0`

C

`x^(2)+y^(2)-4x+2=0`

D

`x^(2)+y^(2)-4x-3=0`

Text Solution

Verified by Experts

The correct Answer is:
A
If zero is not selected then implies `.^(9)C_(2)(2^(4)-2)=504`
If zero is selected then implies `.^(9)C_(1)(2^(3)-1)=63`
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