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已知抛物线C的顶点坐标为原点,焦点在x轴上,直线y=x与抛物线C交于A,B两点,...
已知抛物线C的顶点坐标为原点,焦点在x轴上,直线y=x与抛物线C交于A,B两点,若P(2,2)为AB的中点,则抛物线C的方程为 .
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