1-110-1100-…-110000000000=______.-数学

题目简介

1-110-1100-…-110000000000=______.-数学

题目详情

1-
1
10
-
1
100
-…-
1
10000000000
=______.
题型:解答题难度:中档来源:不详

答案

1-class="stub"1
10
-class="stub"1
100
-…-class="stub"1
10000000000

=1-(0.1+0.01+0.01+…+0.0000000001)
=1-0.1111111111
=0.8888888889
故答案为:0.8888888889.

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