1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256+1/512+1/1024+1/2048+1/4096=_．

题目

1

2

答案

1

2

+

1

4

+

1

8

+

1

16

+

1

32

+

1

64

+

1

128

+

1

256

+

1

512

+

1

1024

+

1

2048

+

1

4096

=1-

1

2

+

1

2

-

1

4

+

1

4

-

1

8

+…+

1

2048

-

1

4096

=1-

1

4096

=

4095

4096

故答案为：

4095

4096

．