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参数广泛地存在于中学数学的各类问题中,也是近几年来高考重点考查的热点问题之一。以命题的条件和结论的结构为标准,含参数的问题可分为两种类型,。一种类型的问题是根据参数在允许值范围内的不同取值(或取值范围),去探求命题可能出现的结果,然后归纳出命题的结论;另一种类型的问题是给定命题的结论去探求参数的取值范围或参数应满足的条件。解决第一类型的参数问
Parameters widely exist in all kinds of problems in high school mathematics, but also one of the hot issues examining the key points of the college entrance examination in recent years. Taking the proposition conditions and the structure of the conclusion as the standard, the problems with parameters can be divided into two types. One type of problem is to find out the possible outcomes of a proposition according to different values (or range of values) of the parameters within the allowable value range, and then to conclude the proposition conclusion. The other type of problem is that for a given proposition Conclusion to explore the range of parameters or parameters should meet the conditions. Solve the first type of parameter asked