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函数单调性是函数最重要的性质之一,单调性的应用是函数单调性的逆向思维,能够加深对概念和性质的理解,是考查的重点和热点,本文就单调性的应用之一:求字母参数的范围,通过一些例题来阐述已知不同类型函数的单调性求参数范围的处理方法。
The function monotonicity is one of the most important properties of the function. The application of monotonicity is the reverse thinking of the monotonicity of the function, which can deepen the understanding of concepts and properties. It is the focus and hot point of the test. Letter parameters of the range, through some examples to explain the different types of functions known monotonicity seeking parameters range approach.