1/6+12/1+20/1+30/1+42/1=
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/01 06:28:33
1/6+12/1+20/1+30/1+42/1=
![1/6+12/1+20/1+30/1+42/1=](/uploads/image/z/1745036-44-6.jpg?t=1%2F6%2B12%2F1%2B20%2F1%2B30%2F1%2B42%2F1%3D)
是1/6+1/12+1/20+1/30+1/42吧
1/6+1/12+1/20+1/30+1/42=1/2 - 1/3 + 1/3 - 1/4 +1/4 -1/5 +1/5 -1/6 +1/6-1/7=1/2 -1/7=5/14
1/6+1/12+1/20+1/30+1/42=1/2 - 1/3 + 1/3 - 1/4 +1/4 -1/5 +1/5 -1/6 +1/6-1/7=1/2 -1/7=5/14
1/6+1/12+1/20+1/30+1/42
1/2+1/6+1/12+1\20+1/30+1/42+.+1/9900=?
1/2+1/6+1/12+1/20+1/30+1/42+1/56=?
2/1+6/1+12/1+20/1+30/1+42/1+56/1=
2/1+6/1+12/1+20/1+30/1+42/1+56/1=?
1/2+1/6+1/12+1/20+1/30+1/42+1/56=
1+1/2+1/6+1/12+1/20+1/30+1/42=?
1/2+1/6+1/12+1/20+1/30+1/42=?用综合算式
简便运算:1/2+(-1/6)+(-1/12)+(-1/20)+(-1/30)+(-1/42)=?
1/6+1/12+1/20+1/30+1/42+1/56=?
1/2+(-1/6)+(-1\12)+(-1\20)+(-1\30)+(-1\42)=?等于多少?
1+1/2+1/6+1/12+1/20+1/30+1/42+1/56+.1/132=