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函数概念的核心是对应法则 ,而对应法则在高中数学里的主要表现形式是解析式 .因而 ,掌握求函数解析式的方法 ,可以加深对函数概念的认识与理解 ,促使学生形成相应的转化与化归的数学思想 .下面通过具体实例来说明求函数解析式常用的方法 .1 换元法( 1 )代入换元法 (体现化归
The core of the concept of function is the correspondence principle, and the main expression of correspondence law in high school mathematics is analytic. Therefore, grasping the method of seeking the analytical function of the function can deepen the understanding and understanding of the concept of function, and promote the students to form the corresponding transformation. Return to the mathematical thinking of the return. The following is a concrete example to illustrate the commonly used method to find the function analytical formula. 1 The substitution method (1) is substituted into the substitution method.