计算(1/2009-1)×(1/2008-1)×(1/2007-1)×.(1/1000-1)
1个回答
999/2009
-3/2
10
-7
1/24
相关问题
计算(1+1/1×3)(1+1/2×4)(1+1/3×5)……(1+1/2006×2008)(1+1/2007×2009
2008+2009×2007/2008×2009-1
(2007×2008×2009×2010+1)-(2008²+2007)²
计算:(1+[1/1×3])×(1+[1/2×4])×(1+[1/3×5])×…×(1+[1/2007×2009]).
计算:[1/1×2]+[1/2×3]+[1/3×4]+…+[1/2008×2009]=______.
2006×2008×([1/2006×2007]+[1/2007×2008])=______.
计算:([2/5])2008×(-[5/2])2009×(-1)2007=______.
计算:([2/5])2008×(-[5/2])2009×(-1)2007=______.
计算1×1!+2×2!+3×3!+4×4!+…2008×2008!+2009×2009!
(1-1/2)×(1-3/1)×.×(1-1/2008)×(1-1/2009)=?