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JEE MATHEMATICS MCQ: CIRCLES

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Application +4 | -1
If the abscissae and ordinates of two points PP and QQ are the roots of the equations x2+2ax−b2=0x^2+2 a x-b^2=0 and x2+2px−q2=0x^2+2 p x-q^2=0 respectively, then the equation of the circle with PQP Q as diameter, is
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Correct option: A
x2+y2+2ax+2py−b2−q2=0x^2+y^2+2 a x+2 p y-b^2-q^2=0
Option A ((-1,4)) is correct because the point (a, -a) lies inside the circle when a is in the interval (-1, 4).

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