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 A=1 then the locus f(x, y) = 0, is (A) x = Y/k +2/(1-K), (where 'k' is a parameter)

Answer»

`X = y/k + 2/1-k, `(where 'k' is a PARAMETER)
`x/k + y/1-k, = 2` (where 'k' is a parameter)
`y = x/k^(2) + 1/1-k` (where 'k' is a parameter)
`x /k^(2) + y/1-k = 1` (where 'k' is a parameter)

ANSWER :A


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