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本刊 2 0 0 1年第 10期的文 [1]对 2 0 0 1年全国高考解几试题进行演绎与深化 ,得出 10个命题 ,读后颇受启发 ,但尚觉意犹未尽 .本文对这道试题作进一步的推广与引伸 .显然这道高考试题是《平面解析几何》(必修 ) 99页题 13的逆问题 ,为此 ,我们把这道试题完善为充要条件的形式
The article [10] of the 10th issue of China’s Journal of China in 2010 was a deduction and intensification of several test questions in the national college entrance examination in 2001, which led to 10 propositions. After reading it, it was quite inspired, but still not fully understood. This test will be used for further promotion and extension. Obviously, this high examination question is the inverse problem of the “Planar Analytical Geometry” (required) on the 99th page of Question 13. To this end, we improve this examination question into a necessary and sufficient condition.