l1/2012-1/2011l+l1/2013一1/2012l+|1/2014-1/2013l-l1/2014-1/2011l
=-(1/2012-1/2011)-(1/2013一1/2012)-(1/2014-1/2013)+(1/2014-1/2011)
=0
计算：l1/2012-1/2011l+l1/2013一1/2012l+|1/2014-1/2013l-l1/2014-1
2个回答
相关问题
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计算：l1/3-1/2l+l1/4-1/3l+l1/5+1/4l+……+l1/2012-1/2011l
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计算:l1/2-1l+l1/3-1/2l+l1/4-1/3l+……+l1/2012-1
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计算：l1-1/2l+l1/2-1/3l+1/3-1/4l+……+l1/9-1/10l
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|1/2014-1/2013|+|1/2013-1/2012|+|1/2012+1/2011|-|1/2011-1/20
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l1/3-1/2l+l1/4-1/3l+l1/5-1/4l+、、、+l1/2007-1/2006l+l1/2008-1/
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|1/2014-1/2013|+|1/2013-1/2012|+|1/2014-1/2012|
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lx+1l+lx-2l+lx-2012l最小值
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1+l+l+l+1＝?
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lx-1l+lx-2l+lx-3l+……+lx-2013l最小值