怎么做1/(1+1.414)+1/(1.414+1.732)+...+1/(1.414+2)

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/29 02:20:07

怎么做1/(1+1.414)+1/(1.414+1.732)+...+1/(1.414+2)

1/(1+1.414)+1/(1.414+1.732)+1/(1.414+2) =1/(1+√2)+1/(√2+√3)+1/(√3+2) =(√2-1)+(√3-√2)+(2-√3) =2-1 =1