(-1+1/100)*(-1+1/101)*(-1+1/102)*...*(-1+1/2006)
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(-1+1/100)*(-1+1/101)*(-1+1/102)*...*(-1+1/2006)(-1+1/100)*(-1+1/101)*(-1+1/102)*...*(-1+1/2006)(-1+
(-1+1/100)*(-1+1/101)*(-1+1/102)*...*(-1+1/2006)
(-1+1/100)*(-1+1/101)*(-1+1/102)*...*(-1+1/2006)
(-1+1/100)*(-1+1/101)*(-1+1/102)*...*(-1+1/2006)
(-1+1/100)*(-1+1/101)*(-1+1/102)*...*(-1+1/2006)
=(-99/100)*(-100/101)*..*(-2005/2006)
从100到2006有1907个-1
=-99/2006,
99/2006
1+101+101-101
(1/100-1)*(1/101-1)*.*(1/2013-1)=?
1/100*101+1/101+102+1/n1/100*101+1/101+102+…+1/n（n+1）
计算:|100/1-99/1|+|101/1-100/1|-|101/1-99/1|
｜1/100-1/99｜+｜1/101-1/100｜-｜1/101-1/99｜
|1/101-1/99|-|1/100-1/99|-|1/100-1/101|＝_____
|1/101-1/99|-|1/100-1/99|-|1/100-1/101|等于多少?
|1/101-1/99|-|1/100-1/99|-|1/100-1/101|
|1/101-1/100|+|1/102-1/101|-|1/102-1/100|=?
|1/101-1/99|-|1/100-1/99|-|1/100-1/101|,
1+1/2-1/2+...+1/100-1/101
1/1*2+1/2*3+1/3*4+...+1/100*101+1/101*102
计算|1/100-1/99|+|1/101-1/100|-|1/101-1/99|计算 | 1/100 - 1/99 | + | 1/101 - 1/100 | - | 1/101 - 1/99 |（像1/100、1/99都是分数来的）
|1/100-1/99|+|1/101-1/100|-|1/100-1/99|=?
(-1+1/100)*(-1+1/101)*(-1+1/102)*.*(-1+1/2010)=?
计算（-1+1/100)×（-1+1/101)×（-1+1、102）×……×（-1+1/2008)
(1-1/100)×(1-1/101)×(1-1/102)×...×(1-1/2008)＝?
(-1+1/100)*(-1+1/101)*(-1+1/102)*...*(-1+1/2007)的解