|1/2-1|+|1/3-1/2|+|1/4-1/3|+|1/5-1/4|...|1/2011-1/2010|
=(1-1/2)+(1/2-1/3)+.+(1/2009-1/2010)+(1/2010-1/2011)
=1-1/2+1/2-1/3+.+1/2009-1/2010+1/2010-1/2011
=1-1/2011
=2010/2011
|1/2-1|+|1/3-1/2|+|1/4-1/3|+|1/5-1/4|...|1/2011-1/2010|等于多少
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相关问题
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请计算1／1*2＋1／2*3+1／3*4+……+1／2010*2011等于多少
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(1-1/2*2)(1-1/3*3)(1-1/4*4).(1-1/2010*2010)(1-1/2011*2011)
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计算 [1/2-]+[1/3-1/2]+[1/4-1/3]+[1/5-1/4]+…+【1/2011-1/2010]+[1
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|1-1/2|+|1/2-1/3|+|1/3+1/4|+…+|1/2010-1/2011|.
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(1-1/2)+(1/2-1/3)+(1/3-1/4)+…+(1/2010-1/2011)=?
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1.-|-3|= 2.+|-3|= 3.-|+3|= 4.|1/2011-1/2010|+|1/2010-1/2009|
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1/1×2 +1/2×3 +1/3×4 +1/4×5+……1/2010×2011
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(1/1-2)+(1/2-1/3)+(1/3-1/4+.+1/2010-1/2011)=?急
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计算|1/2-1|+|1/3-1/2|+|1/4-1/3|+……+|1/2011-1/2010|
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1+2+3+4+5+6+……+2011+2012+2011+2010+2009+……+3+2+1=多少