论文部分内容阅读
确定分式中字母的取值范围,是分式学习中的基础内容.解题时,理解、掌握分式的有关概念将起到重要作用.因此,对分式中字母的取值范围的确定必须加以重视.请看如下数例.
Determining the range of alphabets in fractional formulas is the basic content in fractional learning. When solving problems, understanding and grasping the relevant concepts of fractional formulas will play an important role. Therefore, the determination of the range of alphabets in fractional formulas Must pay attention to. Look at the following examples.