已知函数
,若
,其中
为
的最小值,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4615bddb56f86183decfa227b222acaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f0b42b8dd81b5185985f65647f740a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cdfa44345f4ca2d52017e598b084261.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.2 | B.3 | C.4 | D.5. |
更新时间:2024-05-27 23:51:36
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【推荐1】已知函数
及其导函数
的定义域都是R.命题p:“若函数
是奇函数,则
是偶函数”:命题q:“若函数
是周期函数,则
也是周期函数”.则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d0c99ddd028f0bc3b1d64924ff0f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d0c99ddd028f0bc3b1d64924ff0f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d0c99ddd028f0bc3b1d64924ff0f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
A.p是真命题,q是假命题 | B.p是假命题,q是真命题 |
C.p与q都是真命题 | D.p与q都是假命题 |
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【推荐2】已知函数
为定义在
上的偶函数,且在
上单调递增,则不等式
的解集为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea78c80c85a8fcdd11d52d2b1152d6c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204e2a1261730480f9da5ff505dc8c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0247e16760fe4eccfaee0f1718b95ab4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】已知
,
满足
,当目标函数
(
,
,)在该约束条件下取到最小值2时,
的最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd0cc57b9b4089e4394cc5612d3b5090.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f992bb01c2ec23384c6ae6432a64a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c925be255ca736a53b24d13ddede1a86.png)
A.2 | B.![]() | C.![]() | D.1 |
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解题方法
【推荐2】已知关于x的不等式
的解集为
,其中
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5440f310bd648c941b20842fb31598b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13c699532c53cc192e6e3e9a18fe7d1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1150a249aa9f36fababc252d64b65b0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc176569ec8d428788cda28f6cac07a.png)
A.![]() | B.2 | C.1 | D.![]() |
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