题目内容
下列各对数中,相等的是( )
A.-(-
| B.+(-0.2)和-(+
| ||||||
C.-(+
| D.-(-3
|
A、-(-
)=
=0.75≠-0.75,故本选项错误;
B、+(-0.2)=-0.2,-(+
)=-
=-0.2,故本选项正确;
C、-(+
)=-
=-0.01,-(-0.01)=0.01,故本选,错误;
D、-(-3
)=3
,-(+
)=-3
,故本选项错误.
故选B.
| 3 |
| 4 |
| 3 |
| 4 |
B、+(-0.2)=-0.2,-(+
| 1 |
| 5 |
| 1 |
| 5 |
C、-(+
| 1 |
| 100 |
| 1 |
| 100 |
D、-(-3
| 1 |
| 5 |
| 1 |
| 5 |
| 16 |
| 5 |
| 1 |
| 5 |
故选B.
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