2分之1 4分之1 8分之1 ••• 64分之1=

来源：学生作业学帮网编辑：学帮网时间：2024/06/25 10:00:41

2分之1 +4分之1 +8分之1+.. •••+ 64分之1
=3/4+1/8+1/16+1/32+1/64
=7/8+1/16+1/32+1/64
=15/16+1/32+1/64
=31/32+1/64
=63/64

1/2+1/4+1/8+...+1/64
=3/4+1/8+..+1/64
=7/8+...+1/64
=63/64