(1/2015-1)*(1/2014-1)*(1/2013-1)*...*(1/1001-1)*(1/1000-1)
(1/2015-1)*(1/2014-1)*(1/2013-1)*...*(1/1001-1)*(1/1000-1)
(2009/1-1)×(2008/1-1)×(2007/1-1)×.×(1001/1-1)×(1000/1-1)
(1998/1-1)(1997/1-1)(1996/1-1)...(1001/1-1)(1000/1-1)
计算题(2015分之1-1)(×2014分之1-1)×(2013分之1-1)×.×(44分之1-1)
(2003/1-1)×(2002/1-1)×(2001/1-1)×.×(1001/1-1)×(1000/1-1)=?
(1998/1-1)*(1997/1-1)*(1996/1-1)*.*(1001/1-1)*(1000/1-1).
(1998/1-1)(1997/1-1)(1996/1-1).(1001/1-1)(1000/1-1).
(1/2008-1)*(1/2007-1)*(2006-1).(1/1001-1)*(1/1000-1)
(1/2015-1)(1/2014-1)(1/2013-1)……(1/3-1)(1/2-1)简便计算,麻烦给个答案
(1/1998-1)(1/1997-1)(1/1996-1)...(1/1001-1)(1/1000-1)
计算 ( 1+1/2)*(1-1/3)*(1+1/4)*(1-1/5)*.*(1+1/1000)*(1-1/1001)
(1/2014-1)(1/2013-1)(1-2012-1)...(1/3-1)(1/2-1)