1.

A variable line drawn throgh the point of intersection of the lines x/a+y/b=1,x/b+y/a=1 meets the coordinate axes in A and B. Then the locus of midpoint of AB is

Answer»

`2XY(a+b)=AB(x+y)`
`XY(a+b)=ab(x+y)`
`2xy(a+b)=ab(x-y)`
`xy(a+b)=ab(a-y)`

ANSWER :A


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