|1/2012-1/2011|+|1/2011-1/2010|+|1/2010-1/2009|+.+|1/3-1/2|+|1/2-1|计算|1/2012-1/2011|+|1/2011-1/2010|+|1/2010-1/2009|+.......+|1/3-1/2|+|1/2-1|
问题描述:
|1/2012-1/2011|+|1/2011-1/2010|+|1/2010-1/2009|+.+|1/3-1/2|+|1/2-1|
计算
|1/2012-1/2011|+|1/2011-1/2010|+|1/2010-1/2009|+.......+|1/3-1/2|+|1/2-1|
答