1.

Let P be a point on the parabola, x^2=4y. If the distance of P from the centre of the circle, x^2+y^2+6x+8=0 is minimum, then the equation of the tangent to the parabola at P, is:

Answer»

`x+4y-2=0`
`x+y+1=0`
`x-y+3=0`
`x+2y=0`

ANSWER :B


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