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[几何] $\odot O_1,\odot O_2$交于$M,N$,在$MN$上求作$P$点使得$P$到两圆的切点与$N$共线

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abababa posted 2024-2-17 18:47 |Read mode

$\odot O_1,\odot O_2$交于$M,N$,在$MN$上有一点$P$,过$P$作$\odot O_1,\odot O_2$的切线,切点分别为$A_1,A_2$且$A_1,A_2$在直线$MN$的两侧,求作这样的点$P$使得$A_1,N,A_2$共线。

这是什么著名问题吗?要怎么求作才行?

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