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Equations of diameters of circle (x-...

Equations of diameters of circle
` (x-5)(x-1) + (y - 7) (y-1) = 0 ` .
parallel to co-ordinates axes , are

A

`x = 1, y = 1`

B

`x = 5, y= 7`

C

`x = 5, y= 1`

D

`x = 3, y = 4 `

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The correct Answer is:
D
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