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高考结束以后,笔者对新课标全国卷Ⅰ(乙卷)的压轴题做了研究,发现该题是非常经典的极值点偏移问题.虽然目前已有一些文章对此类问题作了较为详尽的阐述,鉴于其重要性,笔者对此再次做了一些探究,现将个人的一些探究结果分析如下,供大家参考.文[1]对极值点偏移问题进行了详细的阐述.扼要而言,就是:已知函数y=f(x)是连续函数,f(x)在区间(x_1,x_2)内只有一个极值点x0,且f(x_1)=f(x_2),不少极值函数由于极值点左右的增减速
After the college entrance examination ended, I made a research on the finale of the New Curriculum National Volume Ⅰ (B), and found that the question is a very classic extremum point offset problem. Although there are some articles on this issue Detailed elaboration, in view of its importance, the author made some further exploration of this, the individual is now some of the results of the analysis as follows, for your reference.Wen [1] on the extremum point offset problem was described in detail. Is that the function y = f (x) is a continuous function, f (x) has only one extreme point x0 and f (x_1) = f (x_2) in the interval (x_1, x_2) The extreme value function increases or decreases due to the extreme point