计算:(1/2004-1)(1/2003-1)(1/2002-1)'''(1/2-1)应该是```

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计算:(1/2004-1)(1/2003-1)(1/2002-1)'''(1/2-1)应该是```

计算:(1/2004-1)(1/2003-1)(1/2002-1)'''(1/2-1)应该是```
计算:(1/2004-1)(1/2003-1)(1/2002-1)'''(1/2-1)
应该是```

计算:(1/2004-1)(1/2003-1)(1/2002-1)'''(1/2-1)应该是```
(1/2004-1)(1/2003-1)(1/2002-1)…(1/2-1)
=-(1-1/2004)(1-1/2003)(1-1/2002)…(1-1/2)
=-2003/2004*2002/2003*2001/2002…1/2
=-1/2004