计算:(1/2014-1)*(1/2013-1)*(1/2012-1)*.*(1/1001-1)*(1/1000-1)

问题描述:

计算:(1/2014-1)*(1/2013-1)*(1/2012-1)*.*(1/1001-1)*(1/1000-1)

=(-2013/2014)*(-2012/2013)*……*(-1000/1001)*(-999/1000)
2014-1000+1=15
=-999/2014