It explains some basic ways of how to use derivative to study monotonous zone in function, to calculate maximum and minimum, and how to solve some problems on inequality and number sequence, etc.
阐述了利用导数知识研究函数的单调区间、大值最小值等问题的基本方法，以及导数方法为解决某些不等式的证明、列求和等问题提供了捷径。
It explains some basic ways of how to use derivative to study monotonous zone in function, to calculate maximum and minimum, and how to solve some problems on inequality and number sequence, etc.
阐述了利用导数知识研究函数的单调区间、大值最小值等问题的基本方法，以及导数方法为解决某些不等式的证明、列求和等问题提供了捷径。
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