2001*(1/8-1/2009)+8*(1/2001-1/2009)-2009*(1/8+1/2001)+8
答案:2 悬赏:70 手机版
解决时间 2021-02-27 19:22
- 提问者网友:箛茗
- 2021-02-27 05:56
2001*(1/8-1/2009)+8*(1/2001-1/2009)-2009*(1/8+1/2001)+8
最佳答案
- 五星知识达人网友:污到你湿
- 2021-02-27 06:58
将式子拆分可得
2001/8-2001/2009+8/2001-8/2009-2009/8-2009/2001+8
=2001/8-2009/8+8/2001-2009/2001-2001/2009-8/2009+8
=(2001-2009)/8+(8-2009)/2001-(2001+8)/2009+8
=2008/8-2001/2001-2009/2009+8
=251-1-1+8
=257
2001/8-2001/2009+8/2001-8/2009-2009/8-2009/2001+8
=2001/8-2009/8+8/2001-2009/2001-2001/2009-8/2009+8
=(2001-2009)/8+(8-2009)/2001-(2001+8)/2009+8
=2008/8-2001/2001-2009/2009+8
=251-1-1+8
=257
全部回答
- 1楼网友:怙棘
- 2021-02-27 08:34
2001*(1/8-1/2009)+8*(1/2001-1/2009)-2009*(1/8+1/2001)+8
=2001*1/8-2001*1/2009+8*1/2001-8*1/2009-2009*1/8-2009*1/2001+8
=2001/8-2001/2009+8/2001-8/2009-2009/8-2009/2001+8
=2001/8-2009/8-2001/2009-8/2009+8/2001-2009/2001+8
=(2001/8-2009/8)-(2001/2009+8/2009)+(8/2001-2009/2001)+8
=-1-1-1+8=5
=2001*1/8-2001*1/2009+8*1/2001-8*1/2009-2009*1/8-2009*1/2001+8
=2001/8-2001/2009+8/2001-8/2009-2009/8-2009/2001+8
=2001/8-2009/8-2001/2009-8/2009+8/2001-2009/2001+8
=(2001/8-2009/8)-(2001/2009+8/2009)+(8/2001-2009/2001)+8
=-1-1-1+8=5
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