论文部分内容阅读
近年高考和自主招生中,指数函数、对数函数、幂函数复合得到的一类不等式综合问题已是屡见不鲜。但多数学生在处理时无从下手,原因多在于构造对应函数时发现导函数零点不可求或无从讨论,从而无法判断出函数的单调区间确定函数的走势,以至于无法更加精确地刻画函数零点或函数最值。本文以2014华约导数题为例,讲述具体解题过程。
In college entrance examination and self-enrollment in recent years, the exponential function, logarithmic function, power function compound a class of inequality integrated problem is not uncommon. However, most of the students are unable to get started when they deal with the problem. The main reason is that the function zero can not be found or can not be discussed when constructing the corresponding function, so it can not be judged that the monotonous interval of the function determines the trend of functions so that the function zero or function can not be more accurately described The most value. In this paper, 2014 Hua Jiao derivative problem as an example, about the specific problem solving process.