题目内容
已知a=
-1,b=3-2
,c=
-
,则a,b,c的大小关系是( )
| 2 |
| 2 |
| 3 |
| 2 |
| A.a>b>c | B.c>b>a | C.c>a>b | D.a>c>b |
| 1 |
| a |
| 1 | ||
|
| 2 |
| 1 |
| b |
| 1 | ||
3-2
|
| 2 |
| 1 |
| c |
| 1 | ||||
|
| 3 |
| 2 |
∵
| 2 |
| 3 |
| 2 |
| 2 |
∴a>c>b.
故选D.
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题目内容
| 2 |
| 2 |
| 3 |
| 2 |
| A.a>b>c | B.c>b>a | C.c>a>b | D.a>c>b |
| 1 |
| a |
| 1 | ||
|
| 2 |
| 1 |
| b |
| 1 | ||
3-2
|
| 2 |
| 1 |
| c |
| 1 | ||||
|
| 3 |
| 2 |
| 2 |
| 3 |
| 2 |
| 2 |