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圆锥曲线高考题的设置,一般都有较大的计算量.在计算过程中,如何处理好参数问题,构成了难点.这又分为两种情况,一是在解决问题过程中,我们必须要引进参变量,问题才能解决,正如平面几何证明有时必须要引进辅助线问题才能解决一样;二是题设中就给出了参变量,其要求或者是最终消去参变量,或者讨论参变量的取值范围,这些都逃脱不了相当大的计算量.特别是上述两者的结合,构成了高考
Conical curve college entrance examination questions generally have a larger amount of computation in the calculation process, how to handle the parameter problem posed a difficult point.This is divided into two cases, one is in the process of solving the problem, we must The introduction of variables, the problem can be solved, as the plane geometry must sometimes be introduced to solve the problem of auxiliary lines; the second is given in the parameters of the variable, which requires either the final elimination of variables, or to discuss the variables to take Value range, these are not escaped a considerable amount of computation .Especially the combination of the above two constitute the college entrance examination