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在数学试题中常出现含全称量词或存在量词的命题,主要考查命题的转换与逻辑推理能力.若只含有一个全称或存在量词,转化为函数最值处理起来还是比较容易的.但近年的高考试题中,如2010年山东(理)、辽宁(理)的压轴题出现多变量且含两个全称或存在量词,对转化能力提出了更高的要求,得分率普遍不高.本文对这一类的各种形式加以归
In mathematics test often appear with the whole quantifier or existential quantifier proposition, the main test of proposition conversion and logical reasoning ability.If only contains a full name or existential quantifier, converted into the function of the value to handle it is still relatively easy.But in recent years the college entrance examination questions , Such as the 2010 Shandong (reason), Liaoning (reason) finale questions appear multivariate and contain two full name or existential quantifiers, put forward higher requirements for the conversion ability, the score is generally not high.This article on this category Various forms of return