1.

If 4a^(2)+9b^(2)-c^(2)+12ab=0, then the set of lines ax + by+c = 0 pass through the fixed point

Answer»

`(1, 2), (-1, -2)`
`(2,3), (-2, -3)`
`(2, -3), (-2, 3)`
`(1, -2), (-1, 2)`

ANSWER :B


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