JEE Math Practice Question
If the pair of lines $$a{x^2} + 2hxy + b{y^2} + 2gx + 2fy + c = 0$$ intersect on the $$y$$-axis then :
- A.$$2fgh = b{g^2} + c{h^2}$$
- B.$$b{g^2} \ne c{h^2}$$
- C.$$abc = 2fgh$$
- D.none of these
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