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The equation of one of the diameters of ...

The equation of one of the diameters of the circle `x^2+y^2-6x+2y=0` is a)`x+y=0` b)`x-y=0` c)`3x+y=0` d)`x+3y=0`

A

`x+y=0`

B

`x-y=0`

C

`3x+y=0`

D

`x+3y=0`

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The correct Answer is:
D
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