原式=1-1/2+1/2-1/3+……+1/2009-1/2010
=1-1/2010
=2009/2010
化简：|1/2-1|+|1/3-1/2|+|1/4-1/3|+……+|1/2010-1/2009|
2个回答
相关问题
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(-1*1/2)+(-2*1/3)+(-3/1*1/4)+...+(-1/2009*2010)+(-1/2010*1/2
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1/1*2+1/2*3+1/3*4+.1/2009*2010=?
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1/1*2+1/2*3+1/3*4+…+1/2009*2010
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｜1/2-1｜+｜1/3-1/2｜+1/4-1/3｜+...｜1/2009-1/2008｜+｜1/2010-1/2009
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1.-|-3|= 2.+|-3|= 3.-|+3|= 4.|1/2011-1/2010|+|1/2010-1/2009|
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|1/3-1/2|+|1/4-1/3|+...+|1/2010-1/2009|
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数学题哈化简 |1/2010-1/2009|+|1//2009-1/2008|+|1/2008-1/2007|-|1/2
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(1/2+1/3+1/4+...+1/2010)(1+1/2+1/3+...+1/2009)-（1+1/2+1/3+..
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1/(1*20)+1/(2*3)+1/(3*4).+1/(2009*2010)=?
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计算：|2/1-1|+|3/1-2/1|+|4/1-3/1|.+|2010/1-2009/1|?