lxyuke123
幼苗
共回答了19个问题采纳率：84.2% 举报
2-1/2-1/4-1/8-1/16-1/32-...-1/1024
=1+1-1/2-1/4-1/8-1/16-1/32-...-1/1024
=1+1/2-1/4-1/8-1/16-1/32-...-1/1024
=1+1/4-1/8-1/16-1/32-...-1/1024
=1+1/8-1/16-1/32-...-1/1024
=1+1/16-1/32-...-1/1024
=1+1/32-...-1/1024
.
=1+1/512-1/1024
=1+1/1024
=1025/1024
1年前
2
