1+1/2+1/12+1/6+1/20+1/30+1/40+1/56
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 16:47:02
![1+1/2+1/12+1/6+1/20+1/30+1/40+1/56](/uploads/image/z/466347-3-7.jpg?t=1%2B1%2F2%2B1%2F12%2B1%2F6%2B1%2F20%2B1%2F30%2B1%2F40%2B1%2F56)
1+1/2+1/12+1/6+1/20+1/30+1/40+1/56
1+1/2+1/12+1/6+1/20+1/30+1/40+1/56
1+1/2+1/12+1/6+1/20+1/30+1/40+1/56
1+1/2+1/12+1/6+1/20+1/30+11/40+1/56
=1+2/2一1/2+1/3-1/4+1/2 -1/3+1/4-1/5+1/5-1/6+1/5—1/8+1/8-1/7=1+1+1/5-1/7
=2又2/35