1/(1990/1+1991/1+1992/1+...+1999/1)等于多少

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/06 06:44:45
1/(1990/1+1991/1+1992/1+...+1999/1)等于多少1/(1990/1+1991/1+1992/1+...+1999/1)等于多少1/(1990/1+1991/1+1992/

1/(1990/1+1991/1+1992/1+...+1999/1)等于多少
1/(1990/1+1991/1+1992/1+...+1999/1)等于多少

1/(1990/1+1991/1+1992/1+...+1999/1)等于多少
1/(1990/1+1991/1+1992/1+...+1999/1)
=1/【(1990+1999)*10/2)】
=1/19945