The equation of pair of lines joining or...

The equation of pair of lines joining origin to the points of intersection of `x^2 + y^2 =9` and `x + y = 3`

A

`(x+y)^2= 9`

B

`x^2 +(3-x)^2 = 9`

C

`xy =0`

D

`(3-x)^2 +y^2 =9`

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The correct Answer is:

C

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