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The abscisae of A and B are the roots of...

The abscisae of A and B are the roots of the equation `x ^(2) + 2ax -b ^(2) =0` and their ordinates are the roots of the equation `y ^(2) + 2 py -q ^(2) =0.` The equation of the circle with AB as diameter is

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The correct Answer is:
`x^(2)+y^(2)+2ax+ 2py- ( b^(2) + q^(2)) =0` &` sqrt( a^(2)+p^(2) +b^(2) +q^(2))`
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