1/4+1/8+1/16+1/32+1/64+1/128= 用转化方法做.

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/10 08:30:43

1/4+1/8+1/16+1/32+1/64+1/128= 用转化方法做.
1/4+1/8+1/16+1/32+1/64+1/128= 用转化方法做.

1/4+1/8+1/16+1/32+1/64+1/128= 用转化方法做.
=1/2*(1/2+1/4+1/8+1/16+1/32+1/64)=1/2*63/64=63/128