计算(1-1/2)* (1-1/3)*(1-1/4)*······(1-1/2006)*(1-1/2007)

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计算(1-1/2)*(1-1/3)*(1-1/4)*······(1-1/2006)*(1-1/2007)计算(1-1/2)*(1-1/3)*(1-1/4)*······(1-1/2006)*(1-1

计算(1-1/2)* (1-1/3)*(1-1/4)*······(1-1/2006)*(1-1/2007)
计算(1-1/2)* (1-1/3)*(1-1/4)*······(1-1/2006)*(1-1/2007)

计算(1-1/2)* (1-1/3)*(1-1/4)*······(1-1/2006)*(1-1/2007)
1-1/2)* (1-1/3)*(1-1/4)*······(1-1/2006)*(1-1/2007)=1/2X2/3X3/4...X2006/2007=1/2007

1/2007

=1/2007