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初等函数是中学数学的主要内容,函数的最值又能反映函数的性质,因此,求函数的最值是中学数学的重点.历年来的高考总把函数的最值作为考查的重点.在1996—2001年的高考数学试卷(理)中,涉及求函数的最值或求函数的取值范围的至少有一个大题,分数总在12分以上.因此,我们在高中数学总复习时,必须把这类问题作为训练的重点.
The elementary function is the main content of middle school mathematics, and the function’s maximum value can reflect the nature of the function. Therefore, the most important value of the function is the focus of middle school mathematics. In the past years, the college entrance examination always takes the value of the function as the focus of examination. In the 2001 college entrance examination mathematics test paper, at least one big question involving finding the maximum value of a function or finding the value range of a function, the score is always more than 12 points. Therefore, when we review the mathematics of high school, we must Take this kind of problem as the focus of training.