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用导数法求含参函数最(极)值时,同学们经常会很纠结,纠结于如何去选择分类标准.今天我们从一个问题的解决来归纳出解决这类问题的本质想法,让同学们从此不再纠结.
When using the derivative method to find the most extreme value of a parametric function, students often get tangled and tangled in how to choose a taxonomy. Today we draw from the solution of a problem the essential idea of solving such problems so that the students No longer tangled.