英语翻译in order to have a inverse function,the function must be one-to-one,but why the sine function has a inverse function?

分类: 作业答案 • 2021-12-19 14:54:48

问题描述：

英语翻译
in order to have a inverse function,the function must be one-to-one,but why the sine function has a inverse function?

答

在给定区间内,[-π/2,π/2],可以讨论反函数,其他区间也可以,可以利用,[-π/2,π/2]的反函数表示,但区间必须是满足定义域值域间的一一对应