题目内容
求
-
(
-x-y-1)的值，其中x=l，y=0．
| 1 |
| 2x |
| 1 |
| x+y |
| x+y |
| 2x |
| 1 |
| 2x |
| 1 |
| x+y |
| x+y |
| 2x |
=
| 1 |
| 2x |
| 1 |
| x+y |
| x+y |
| 2x |
=
| 1 |
| 2x |
| 1 |
| x+y |
| x+y |
| 2x |
| x+y+1 |
| x+y |
=
| 1 |
| 2x |
| 1 |
| 2x |
| 1 |
| x+y |
=1+
| 1 |
| x+y |
当x=1，y=0时，原式=1+
| 1 |
| 1+0 |
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相关题目
=
=
=
=1+
当x=1，y=0时，原式=1+
题目内容
| 1 |
| 2x |
| 1 |
| x+y |
| x+y |
| 2x |
| 1 |
| 2x |
| 1 |
| x+y |
| x+y |
| 2x |
| 1 |
| 2x |
| 1 |
| x+y |
| x+y |
| 2x |
| 1 |
| 2x |
| 1 |
| x+y |
| x+y |
| 2x |
| x+y+1 |
| x+y |
| 1 |
| 2x |
| 1 |
| 2x |
| 1 |
| x+y |
| 1 |
| x+y |
| 1 |
| 1+0 |