1*1/6+1/6*1/11+1/11*1/16+.1/96*1/101
1*1/6+1/6*1/11+1/11*1/16+.1/96*1/101
日期:2022-04-10 09:36:50 人气:1
1*1/6+1/6*1/11+1/11*1/16+.1/96*1/101
=1/5*(1-1/6)+1/5(1/6-1/11)+...+1/5(1/96-1/101)
=1/5*(1-1/6+1/6-11/6+...+1/96-1
=1/5*(1-1/6)+1/5(1/6-1/11)+...+1/5(1/96-1/101)
=1/5*(1-1/6+1/6-11/6+...+1/96-1