1.

A variable line passes through the fixed point (alpha, beta). The locus of the foot of the perpendicular from the origin on the line is

Answer»

`x^(2) + y^(2) - alpha x -BETA y=0`
`x^(2)-y^(2) + 2 alpha x+ 2 beta y=0`
`alpha x+ beta y +- SQRT((alpha^(2) + beta^(2)))=0`
`(x^(2))/(alpha^(2)) + (y^(2))/(beta^(2))=1`

ANSWER :A


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