当
取最小值时,
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3b45f7cf146e6db213066a701c02856.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc65c25100067acbbfd89dee8bf8bfbd.png)
A.0 | B.-1 | C.0或-1 | D.以上都不对 |
更新时间:2020-11-22 18:50:52
|
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【推荐1】若
互为相反数,
,
互为倒数,
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc3a73eea58b9b5568875769833fd6a.png)
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A.3 | B.1 | C.3或![]() | D.![]() |
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【推荐2】已知实数
,
在数轴上对应点的位置如图所示,下列结论错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/28/c9639c44-3762-4dff-8014-86a865ba9ab1.png?resizew=230)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b331bbdd68d110681fc4547748b93bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/581c04af30b490da1a50555f9c89125c.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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较易
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名校
【推荐1】下列说法中,正确的有( )
①0是最小的整数;
②若
,则
;
③互为相反数的两数之和为零;
④数轴上表示两个有理数的点,较大的数表示的点离原点较远.
①0是最小的整数;
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cfeda8c76660badd8b428b3510d68d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f22fec5a381ae8aca93d876e54c79de.png)
③互为相反数的两数之和为零;
④数轴上表示两个有理数的点,较大的数表示的点离原点较远.
A.0个 | B.1个 | C.2个 | D.3个 |
您最近一年使用:0次
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【推荐2】下列说法中,正确的个数有( )
(1)绝对值最小的数是1和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
(2)多项式
是三次四项式.
(3)若
,
,代数式
的值为18.
(4)若
,则
.
(1)绝对值最小的数是1和
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(2)多项式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50d3d9674feccd4b9d4c5290e2b7df4a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1163bc5962139d324b55abd4bf10c814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a178e29feea94276dcc46870e8d94da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0146c75af51ec88de9f9f2a3fa117a.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cb8abe4610534460967082d62d5d3d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
A.0个 | B.1个 | C.2个 | D.3个 |
您最近一年使用:0次
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【推荐1】若
,
,且
,则
的值是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf1aaaea0449ea43cf2cd284441ecfbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcbb2d9e082462c06c281dd00cedbbcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f2416d1f75a45a314331146550832e.png)
A.5或1 | B.1或![]() | C.5或![]() | D.![]() ![]() |
您最近一年使用:0次