1+1/2+1/4+1/8+1/16+1/32.

问题描述:

1+

1
2
+
1
4
+
1
8
+
1
16
+
1
32

1+

1
2
+
1
4
+
1
8
+
1
16
+
1
32

=1+1-
1
2
+
1
2
-
1
4
+
1
4
-
1
8
+
1
8
-
1
16
+
1
16
-
1
32

=2-
1
32

=
63
32