计算：[9/10]+[99/100]+[999/1000]+[9999/10000]．？
展开全部
解题思路：将式子变形为1-0.1+1-0.01+1-0.001+1-0.0001，进一步计算即可求解．
[9/10]+[99/100]+[999/1000]+[9999/10000]
=1-0.1+1-0.01+1-0.001+1-0.0001
=4-0.1111
=3.8889．
,5,9/10+99/100+999/1000+9999/10000
=9/10*(1+1.1+1.11+1.111)
=0.9*4.321
=3.8889,2,38889/10000,2,3.8889,1,1,0,
[9/10]+[99/100]+[999/1000]+[9999/10000]
=1-0.1+1-0.01+1-0.001+1-0.0001
=4-0.1111
=3.8889．
,5,9/10+99/100+999/1000+9999/10000
=9/10*(1+1.1+1.11+1.111)
=0.9*4.321
=3.8889,2,38889/10000,2,3.8889,1,1,0,
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
推荐律师服务：
若未解决您的问题，请您详细描述您的问题，通过百度律临进行免费专业咨询
