0.2001X0.19981998一0.1998X0.20012001=多少?
答案:3 悬赏:80
解决时间 2021-02-13 01:01
- 提问者网友:伴风望海
- 2021-02-12 13:49
0.2001X0.19981998一0.1998X0.20012001=多少?
最佳答案
- 二级知识专家网友:等灯
- 2021-02-12 15:08
0.2001X0.19981998一0.1998X0.20012001=
=0.2001X(0.1998+0.00001998)一0.1998X(0.2001+0.00002001)
=0.2001X0.1998+0.2001X0.00001998一0.1998X0.2001-0.1998X0.00002001
=0.2001X0.1998一0.1998X0.2001+0.2001X0.00001998-0.1998X0.00002001
=0
=0.2001X(0.1998+0.00001998)一0.1998X(0.2001+0.00002001)
=0.2001X0.1998+0.2001X0.00001998一0.1998X0.2001-0.1998X0.00002001
=0.2001X0.1998一0.1998X0.2001+0.2001X0.00001998-0.1998X0.00002001
=0
全部回答
- 1楼网友:梦中风几里
- 2021-02-12 15:49
0.2001X0.19981998一0.1998X0.20012001
=0.2001×0.1998×1.0001-0.1998×0.2001×1.0001
=0
=0.2001×0.1998×1.0001-0.1998×0.2001×1.0001
=0
- 2楼网友:迷人又混蛋
- 2021-02-12 15:39
0.2001X0.19981998一0.1998X0.20012001
=0.2001×1998×0.00010001-0.1998×2001×0.00010001
=2001×0.1998×0.00010001-2001×0.1998×0.00010001
=0
=0.2001×1998×0.00010001-0.1998×2001×0.00010001
=2001×0.1998×0.00010001-2001×0.1998×0.00010001
=0
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