(1-1/2009)(1-1/2008)(1-1/2007)……(1-1/3)(1-1/2)求过程及答案
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(1-1/2009)(1-1/2008)(1-1/2007)……(1-1/3)(1-1/2)求过程及答案
(1-1/2009)(1-1/2008)(1-1/2007)……(1-1/3)(1-1/2)
求过程及答案
(1-1/2009)(1-1/2008)(1-1/2007)……(1-1/3)(1-1/2)求过程及答案
2008
(1-1/2009)=------
2009
2007
(1-1/2008)=------
2008
...
2
(1-1/3) = -----
3
1
(1-1/2) = -----
2
所以
(1-1/2009)(1-1/2008)(1-1/2007)……(1-1/3)(1-1/2)
2008 2007 2006 2 1
= ---- ---- ---- ...--- ---
2009 2008 2007 3 2
挫项相消
1
= ----
2009
2008×2009-1分之2008+2009×2007
2008+2009×2007/2008×2009-1
2008+2007+2009/2008*2009-1
2008+2009*2007/2008*2009-1
2009×2009+2008分之2009×2010-1
2008*2009-1与2008^-2008*2009+2009^的大小2008*2009-1与2008^-2008*2009+2009^
(2008+2007*2009/2008*2009-1)+(2009+2008*2010/2009*2008-1)怎么算
|1/2009-1/2008|+|1/2008-1/2007|+|1/2007-1/2006|-|1/2006-1/2009|
(2010+1/2009)/(2009+1/2010)+(2008+1/2009)/(2009+1/2008)
2008*2009-1分之2008+2007*2009+2009*1010-1分之2009+2008*2010用巧算
计算(-0.2)^2009×5^2009+(-1)^2009-(-1)^2008
2008+2009*20082008-2008*20092009+1简算
2009*2010-1分之2009+2008+2010
计算:|1/2009-1/2008|-|1/2010-1/2008|+|1/2010-1/2009|
计算|1/2009-1/2008|+|1/2008-1/2007|-|1/2009-1/2007|=( )
计算:|1/2009-1/2008|+|1/2008-1/2007|-|1/2009-1/2007|
1/2010-1/2009 的绝对值+1/2009-1/2008的绝对值+1/2008-1/2007
计算:|1/2009-1/2008|+|1/2008-1/2007|-|1/2009-1/2007|=