题目内容
比较大小:
-
______-
,
-(-2)______-|-3|;
-[-(+
)]______-[+(-
)].
-
| 2 |
| 3 |
| 3 |
| 4 |
-(-2)______-|-3|;
-[-(+
| 1 |
| 4 |
| 1 |
| 4 |
∵|-
|=
=
,|-
|=
=
,
∴-
>-
;
∵-(-2)=2,-|-3|=-3,
∴-(-2)>-|-3|;
∵-[-(+
)]=
,-[+(-
)]=
,
∴-[-(+
)]=-[+(-
)].
故答案为>、>、=.
| 2 |
| 3 |
| 2 |
| 3 |
| 8 |
| 12 |
| 3 |
| 4 |
| 3 |
| 4 |
| 9 |
| 12 |
∴-
| 2 |
| 3 |
| 3 |
| 4 |
∵-(-2)=2,-|-3|=-3,
∴-(-2)>-|-3|;
∵-[-(+
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
| 1 |
| 4 |
∴-[-(+
| 1 |
| 4 |
| 1 |
| 4 |
故答案为>、>、=.
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