X轴有定点f1、f2,p为动点,若lnf1p Lnf2p为定值a,则p的轨迹方程是怎样的? 知乎 Template




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tomskix轴有定点f1、f2,p为动点,若lnf1p lnf2p为定值a,则p的轨迹方程是怎样的? 知乎 coloring