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[几何] 一道双曲线有关的问题

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lemondian posted 2022-1-23 21:43 |Read mode
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此题的第(2)问,能不能用极点极线(或调和)的知识解答?

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kuing posted 2022-1-23 22:53
都见识过这么多极点极线题了,怎么连这么简单的都还看不出……
将图形作到关于 x 轴对称,这时两条对角线的交点也就是 Q 关于双曲线的极线与 x 轴的交点,就是定点。

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isee posted 2022-1-24 00:04
回复 2# kuing

可能楼主仅仅是来解一下结果而已,哈哈哈哈哈哈

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