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Find out the process of solving the eighth problem of mathematical science in Beijing college entrance examination in 2009.
Parabolic equation is wrong, y = x 2 and y=x- 1 never intersect, maybe y 2 = x? The intersection points are A[(3+√5)/2, (1+√5)/2] and [(3-√5)/2, (1-√5)/2]. Make an arbitrary straight line from the intersection of point A and the middle perpendicular of parabola B and AB =