(1/3)-(1/6)-(1/12)-(1/20)-(1/30)-(1/42)
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:2024/07/23 09:13:11
(1/3)-(1/6)-(1/12)-(1/20)-(1/30)-(1/42)
![(1/3)-(1/6)-(1/12)-(1/20)-(1/30)-(1/42)](/uploads/image/z/7284416-32-6.jpg?t=%281%2F3%29-%281%2F6%29-%281%2F12%29-%281%2F20%29-%281%2F30%29-%281%2F42%29)
(1/3)-(1/6)-(1/12)-(1/20)-(1/30)-(1/42)
=1/3-[(1/6)+(1/12)+(1/20)+(1/30)+(1/42)]
=1/3-[1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6]
=1/3-[1/2-1/6]
=1/3-[3/6-1/6]
=1/3-2/6
=1/3-1/3
=0
=1/3-[(1/6)+(1/12)+(1/20)+(1/30)+(1/42)]
=1/3-[1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6]
=1/3-[1/2-1/6]
=1/3-[3/6-1/6]
=1/3-2/6
=1/3-1/3
=0
1/6+1/12+1/20+1/30+1/42
(1/3)-(1/6)-(1/12)-(1/20)-(1/30)-(1/42)
1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72
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=?
1/2+1/6+1/12+1/20+1/30+1/42+1/56 简算
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的简便计算
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等于多少
1/2+1/6+1/12+1/20+1/30+1/42+1/56简算,
1/6+1/12+1/20+1/30+1/42+1/56+.+1/9900