1/2+1/4+1/8+1/16+1/31+1/62+1/124+1/248+1/496

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/21 04:06:33

1/2+1/4+1/8+1/16+1/31+1/62+1/124+1/248+1/496

原式=
(1+2+4+8)/16 +(1+2+4+8+16)/496=
15/16+31/(31×16)=15/16+1/16=1