2005除以2006又1\2004+1又2\2003乘2003\2005=?
人气:236 ℃ 时间:2019-11-10 10:35:13
解答
水墨花青 ,
2005÷2006又1/2004+1又2/2003×2003/2005
=2005÷(2006×2004+1)/2004+(1×2003+2)/2003×2003/2005
=(2005×2004)/(2006×2004+1)+ (1×2003+2)/2005
=(2005×2004)/[(2005+1)×(2005-1)+1]+2005/2005
=(2005×2004)/2005²+1
=1又2004/2005
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