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有些函数问题,形式相似,实质不同.常有同学张冠李载,造成误解,下面列出几组典型问题,进行对比、辨析.例1已知函数2.主元与参数
Some function problems are similar in form and different in substance. There are often classmates Zhang Guan and Li Zai, which cause misunderstandings. The following lists some typical problems and compare and discriminate them. Example 1 Known functions 2. Principal elements and parameters