计算:(1-100/1)(1-99/1)(1-98/1)…(1-4/1)(1-3/1)=?

问题描述:

计算:(1-100/1)(1-99/1)(1-98/1)…(1-4/1)(1-3/1)=?

(1-100/1)(1-99/1)(1-98/1)…(1-4/1)(1-3/1)
=(100/99)(99/98)(98/97)…(4/3)(3/2)
=100/2
=50/1