(1/2012-1)*(1/2011-1)*(1/2010-1).*(1/1000-1)
问题描述:
(1/2012-1)*(1/2011-1)*(1/2010-1).*(1/1000-1)
答
-999/2012
答
(1/2012-1)*(1/2011-1)*(1/2010-1).*(1/1000-1)
=-2011/2012×2010/2011×.×1000/1001×999/1000
=-999/2012