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在任教中会有很多圆锥曲线通过定点和定值的问题,此类问题从始至终都是教学中的难点,学生常常找不到解题点,不清楚答题思路。
In teaching there will be a lot of conic curves through the fixed point and the value of the problem, such problems are teaching difficulties from start to finish, students often can not find the problem-solving points, not clear answer ideas.