1/2+1/4+1/8+1/16+1/32+1/64+1/128算出计算过程,

来源：学生作业学帮网编辑：学帮网时间：2024/05/15 04:09:53

原式=(1/2+1/4)+1/8+1/16+1/32+1/64+1/128
=(3/4+1/8)+1/16+1/32+1/64+1/128
=(7/8+1/16)+1/32+1/64+1/128
=...
=127/128
.