问题标题:
【计算1/3-1/2+1/4-1/3+1/5-1/4+1/6-1/5+.+100/1-99/1】
问题描述:
计算1/3-1/2+1/4-1/3+1/5-1/4+1/6-1/5+.+100/1-99/1
黄力回答:
1/3-1/2+1/4-1/3+1/5-1/4+1/6-1/5+.+100/1-99/1
=-1/2+(1/3-1/4)+(1/4-1/4)+...+(1/99-1/99)+1/100
=1/100-1/2
=-49/100
点击显示
数学推荐
热门数学推荐