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函数概念的核心是对应法则,而对应法则的主要表现形式是解析式,因而函数解析式的求法在高中数学中占有重要的位置,下面通过实例说明函数解析式的求法.一、换元法
The core of the concept of function is the corresponding rule, and the main expression of the corresponding rule is analytic, so the method of function analytical expression occupies an important position in high school mathematics. The following example explains the method of the analytical function of the function.