|1/2-1|+|1/3-1/2|+•••+|1/2012-12011|答案是多少
1个回答
|1/2-1|+|1/3-1/2|+•••+|1/2012-12011|
=1-1/2+1/2-1/3+.+1/2011-1/2012 内部抵消
=1-1/2012
=2011/2012
相关问题
2010×2012×([1/2010×2011+12011×2012])
2010×2012×([1/2010×2011+12011×2012])
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1.1+1.2+1.3加到4.9答案是多少
1/1+2+1/1+2+3+-----+1/1+2+3+-----+2012的值?