1.

A tangent is drawn at any point (l,m) l, m ne 0 on the parabola y ^(2) = 4 ax and the tangents are drawn from any point on this tangent to the circle x ^(2)+ y ^(2) =a ^(2) (where a gt 0) such that all chords of contact pass through a fixed point (alpha, beta), then

Answer»

`alpha l gt 0, beta m LT 0`
`alpha l lt 0, beta m gt 0`
`2 ((l)/(alpha)) ^(2) +((m)/(beta))=8`
`4 ((l )/(alpha )) + ((m)/(beta))^(2) =0`

Answer :B::D


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