if (x-a)^2+(y-b)^2=c^2, for some c>0 pro...

if `(x-a)^2+(y-b)^2=c^2`, for some `c>0` prove that `[1+(dy/dx)^2]^(3/2) /((d^2y)/(dx^2))`is constant independent of a and b

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which is consntat and is independent of a and b

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