1.

Let a tangent be drawn at a point on the focus f(x,y) = 0 and it meets the positive X and Y- axes at point P and Q. Let A and G be respectively the arithmetic and geometric means of the segments OP and OQ. Now, If G = 1 then, the locus f(x, y)= 0, is

Answer»

`kx^(2)-2XY + KY^(2) +1 = 0` (where 'k' is a parameter)
`(1-k)X^(2)-2xy + ky^(2) +1 = 0` (where 'k' is a parameter)
`kx^(2)-2xy +1/ ky^(2) +1 = 0 `(where 'k' is a parameter)
`(1-k)x^(2)-2xy + 1/ky^(2) +1 = 0` (where 'k' is a parameter)

Answer :C


Discussion

No Comment Found

Related InterviewSolutions