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The equation of diameter of a circle x^...

The equation of diameter of a circle `x^(2) + y^(2) + 2x - 4y =4`, that is parallel to `3x + 5y =4` is

A

`3x + 5y =7`

B

`3x -5y = 7`

C

`3x + 5y =-7`

D

`3x -5y = -7`

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The correct Answer is:
A
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