(1/2008-1)(1/2007-1)(1/2006-1)…(1/3-1)(1/2-1)
(1/2008-1)(1/2007-1)(1/2006-1)…(1/3-1)(1/2-1)
(1-1/2^)(1-1/3^)……(1-1/2007^)(1-1/2008^)
数学-(1/2008-1)(1/2007-1)(1/2006-1)…(1/3-1)(1/2-1)给我算式!
1、(1/2+1/3+……1/1007)*(1+1/2+……1/2006)-(1+1/2+……+1/2007)*(1/2
计算;(1/2008-1)(1/2007-1)(1/2006-1).(1/3-1)(1/2-1)=
(1/2008-1)(1/2007-1)(1/2006-1)……(1/1001-1)(1/1000-1)
(1/2008-1)*(1/2007-1)*(2006-1).(1/1001-1)*(1/1000-1)
(2008分之1-1)(2007分之1-1)(2006分之1-1).(3分之1-1)(2分之1-1)的值是多少?
(1)1×2分之1 + 2×3分之1 + … +2007×2008分之1
计算:(1/2009-1)(1/2008-)(1/2007-1)……(1/3-1)(1/2-1)
计算(1/2+1/3+...+1/2008)*(1+1/2+...+1/2007)-(1+1/2+...+1/2008)
(1/2009-1)(1/2008-1)(1/2007-1)……(1/3)(2/1)计算