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The equation of the circle whose diamet...

The equation of the circle whose diameter is the common chord of the circles
`x^(2) + y^(2) + 2x+ 2y + 1= 0 ` and
`x^(2) + y^(2) + 4x+6y +6 = 0 ` is

A

`10x^(2) +10y^(2)+ 18 x + 16y + 5=0`

B

`3x^(2) +3y^(2) - 3x + 6y - 8 = 0 `

C

`2x^(2) +2y^(2) - 2x +4y +1 = 0`

D

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

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The correct Answer is:
A
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