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Let C(1)andC(2) be, respectively, the pa...

Let `C_(1)andC_(2)` be, respectively, the parabola `x^(2)=y-1andy^(2)=x-1`.
Also, let P any point on `C_(1)andQ` be any point on `C_(2)`. If `P_(1)andQ_(1)` are the reflections of P and Q, respectively, with respect to the line y=x, then

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