If A is the midpoint of the common chord of circle x2+y2−4x−4y=0 a – InterviewSolution

1.	If A is the midpoint of the common chord of circle x2+y2−4x−4y=0 and x2+y2=16 and P be any point on the circumference of the circle x2+8x+y2+12x+36=0 then maximum length of AP is
Answer» If $A$ is the midpoint of the common chord of circle $x^{2} + y^{2} - 4 x - 4 y = 0$ and $x^{2} + y^{2} = 16$ and $P$ be any point on the circumference of the circle $x^{2} + 8 x + y^{2} + 12 x + 36 = 0$ then maximum length of $A P$ is

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