论文部分内容阅读
图1案例最近笔者在高三数学教学高考复习指导中遇到这样一个问题:设f′(x)是函数f(x)的导函数,已知y=f′(x)的图像如图1所示,则y=f(x)的图像最有可能的是()在评讲这道题时,我引导学生根据y=f′(x)的图像的特征分析得,x=0及x=2处f′(x)=0,以及在x=0及x=2左右附近的f′(x)的符号
Figure 1 Case Recently, the author encountered such a problem in the high school mathematics teaching college entrance examination review guide: Let f′(x) be the function of function f(x), and the image with known y=f′(x) is shown in Figure 1. Show, then the image of y = f (x) is most likely () In commenting this question, I guide students to analyze the characteristics of the image of y = f ’(x), x = 0 and x = 2 at f′(x)=0, and f′(x) around x=0 and x=2