12.1循环+13.1循环+14.1循环+15.1循环+16.1循环+17.1循环+18.1循环+19.1循环+20.1循环计算
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/02 19:31:50
![12.1循环+13.1循环+14.1循环+15.1循环+16.1循环+17.1循环+18.1循环+19.1循环+20.1循环计算](/uploads/image/z/221566-22-6.jpg?t=12.1%E5%BE%AA%E7%8E%AF%2B13.1%E5%BE%AA%E7%8E%AF%2B14.1%E5%BE%AA%E7%8E%AF%2B15.1%E5%BE%AA%E7%8E%AF%2B16.1%E5%BE%AA%E7%8E%AF%2B17.1%E5%BE%AA%E7%8E%AF%2B18.1%E5%BE%AA%E7%8E%AF%2B19.1%E5%BE%AA%E7%8E%AF%2B20.1%E5%BE%AA%E7%8E%AF%E8%AE%A1%E7%AE%97)
12.1循环+13.1循环+14.1循环+15.1循环+16.1循环+17.1循环+18.1循环+19.1循环+20.1循环计算
12.1循环+13.1循环+14.1循环+15.1循环+16.1循环+17.1循环+18.1循环+19.1循环+20.1循环
计算
12.1循环+13.1循环+14.1循环+15.1循环+16.1循环+17.1循环+18.1循环+19.1循环+20.1循环计算
0.1循环=1/9
所以原式=12+1/9+13+1/9+...+20+1/9
=(12+20)*9/2+9*1/9
=145