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(2004-2/2003)/1001怎样算
人气:411 ℃ 时间:2020-03-28 22:43:55
解答
等式=(2003-1-2/2003)/1001
=(2003²-2003-2)/(1001X2003)
=(2003-2)(2003+1)/(1001X2003)
=2001X2004/(1001X2003)
=(2000+1)x2004/(1000x2003+1x2003)
=4010004/2005003
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