论文部分内容阅读
若A是函数y=f(x)的定义域,对于A中的每一个x,就有一个输出值y与之对应,则我们将所有输出值y的集合称为函数的值域.常见的求值域的题型和方法:
If A is the domain of the function y=f(x), for each x in A there is an output value y corresponding to it, then we will refer to the set of all output values y as the domain of the function. Common The question type and method of the evaluation domain: