摘要
We used tables and graphs by using graphing-calculator to guess values of limits,however,we found methods we used don’t always lead to the correct answer.Theproperties of limits have been found.It iseasy to believe they are true.For example,iff(x)is close to Land g(x)is close to M,itis reasonable to get the result that f(x)
We used tables and graphs by using graphing- calculator to guess values of limits, however, we found methods we used don＇t always lead to the correct answer. The properties of limits have been found. It is easy to believe they are true. For example,
