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函数是高中数学的中心内容 ,它不仅是一条重要的数学概念 ,而且是一种重要的数学思想 .而函数的单调性则是函数的一条重要性质 ,它是历年高考重点考查的重要内容 ,它的应用十分广泛 .本文通过下面几例探讨函数单调性在解题中的应用 .1 比较大小例 1 设ｆ(ｘ) =ｘ2 +ｂｘ+ｃ对
Function is the central content of high school mathematics, it is not only an important mathematical concept, but also an important mathematical idea. The monotony of the function is an important property of the function, it is an important part of the examination of the college entrance examination over the years, it The application is very extensive. This article discusses the application of function monotonicity in problem solving through the following examples.1 Compare size example 1 Let f(x) = x2 + bx + c