问题
解答题
计算:
|
答案
原式=(1-
1 |
2 |
1 |
2 |
1 |
4 |
1 |
4 |
1 |
8 |
1 |
31 |
1 |
31 |
1 |
62 |
1 |
62 |
1 |
124 |
1 |
124 |
1 |
248 |
1 |
248 |
1 |
496 |
=1-
1 |
8 |
1 |
31 |
1 |
31 |
1 |
496 |
=
7 |
8 |
1 |
31 |
1 |
16 |
7 |
8 |
1 |
31 |
31 |
16 |
=
7 |
8 |
1 |
16 |
15 |
16 |
故答案为:
15 |
16 |
计算:
|
原式=(1-
1 |
2 |
1 |
2 |
1 |
4 |
1 |
4 |
1 |
8 |
1 |
31 |
1 |
31 |
1 |
62 |
1 |
62 |
1 |
124 |
1 |
124 |
1 |
248 |
1 |
248 |
1 |
496 |
=1-
1 |
8 |
1 |
31 |
1 |
31 |
1 |
496 |
=
7 |
8 |
1 |
31 |
1 |
16 |
7 |
8 |
1 |
31 |
31 |
16 |
=
7 |
8 |
1 |
16 |
15 |
16 |
故答案为:
15 |
16 |