(1/2010*1/2009*1/2008*...*1/3*1/2*1)^2011*(2010*2009*2008*..
(1/2010*1/2009*1/2008*...*1/3*1/2*1)^2011*(2010*2009*2008*..
|1/2011-1/2010|+|1/2011-1/2009|+|1/2009-1/2008|+...+|1/3-1/2
计算|1/2011-1/2010|+|1/2010-1/2009|+|1/2009-1/2008|+...+|1/2-1
计算1/1*2010+1/2*2009+1/3*2008+...+1/2010*1-2010/2011(1/1*2009
计算 |1/2011-1/2010|+|1/2010-1/2009|+|1/2009-1/2008|+...+|1/3-
计算 |1/2011-1/2010|+|1/2010-1/2009|=+|1/2009-1/2008|+..+|1/2-
计算|1/2011-1/2010|+|1/2010-1/2009|+|1/2009-1/2008|-|1/2008-1/
计算|1/2011-1/2010|+|1/2010-1/2009||+|1/2009-1/2008|…+|1/3-1/2
用简便方法计算(1/2010*1/2009*1/2008*...*1/3*1/2*1)^2011*(2010*2009*
2011+2010+2009-2008-2007-2006+...-4-3-2+1
2010+2009×2011/2010×2011-1—2009+2008×2010/2009×2010-1
(2009+2008*2010)/(2009*2010-1)+(2010+2009*2011)/(2010*2011-1