如果
,那么
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bd77f801ece38864179303ada04532.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.-2 | B.2 | C.![]() | D.4 |
更新时间:2019-11-29 10:15:32
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【推荐1】下列各式结果相等的是( )
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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【推荐2】在
,
,
,0,
,
,
这七个数中,非负数有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4646418552dc060ebda1232361a01295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45471f4b09f3db32a4c2919103b3d8c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c5ddaca8b23ff5630c36d63712fa07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731d47a812cc1d0509702e0ec76b2a31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3528d985a77044680e3fb9bd49c8e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecb24d16569973954920478a80420426.png)
A.3个 | B.4个 | C.5个 | D.6个 |
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【推荐2】已知
,
,且
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ccd888d9ccae6931263cc5aaaba937.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e6583f77adaadd380376a15ef1eabcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5276cdcaec2e1f3420c08875d16ec3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d6df06a5b85848dc4fa33327f8e07.png)
A.1或7 | B.1或![]() | C.![]() | D.![]() ![]() |
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