论文部分内容阅读
圆锥曲线求参数范围问题,是近几年高考的热点.其中尤以含有两个参数问题较难,解这类问题的关键在于寻求两个参数的关系.
The problem of finding the range of parameters for the conic curve is a hot spot in the college entrance examination in recent years. Among them, it is difficult to contain two parameter problems. The key to solving such problems is to seek the relationship between two parameters.