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If the left hand side of the equation ...

If the left hand side of the equation
`a(b-c)x^2+b(c-a) xy+c(a-b)y^2=0` is a perfect square , the value of
`{(log(a+c)+log(a-2b+c)^2)/log(a-c)}^2`, `(a,b,cinR^+,agtc)` is

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