1.

If the pair of lines ax^(2)+2hyx+by^(2)+2gx+2fy+c=0 intersect on the x-axis, then 2fgh

Answer»

`af^(2)+ch^(2)`
`BG^(2)+ch^(2)`
`af^(2)+bg^(2)`
`af^(2)+G^(2)`

ANSWER :A


Discussion

No Comment Found