1.

If the line x+y+1=0 and y=2x+5=0 are tangents to a parabola whose focus at (1,2) then the equation of normal to the parabola through (29/17, 14/17) is

Answer»

`2x+4y-1=0`
`y-3x+2=0`
`4x+y-5=0`
NONE of these

Solution :Normal through GIVEN point be the AXIS of PARABOLA.
`y-2=-4(x-1)`
`4x+y=6`


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