1 . 函数
,的值域为
,且
,则实数
的取值集合为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a33a6ade99b08964df3b2c81c62ddd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e17a7b7c34a50c354b159156cd8ebec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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解题方法
2 . 已知函数
是定义在区间
上的偶函数
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34c927f97498e7a3a8aa0b3252849734.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bcaceadc00d891e292c8bdff9e4ce64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06fda0e4aa51b78c3f4b3d7e988b1692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02837172598f13bdd6a5c69f52d3dfa6.png)
A.1 | B.5 | C.9 | D.10 |
您最近一年使用:0次
3 . 已知
,则( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21373dc076c7a53026793e286073654f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 已知函数
,其中
,
为实数且
.
(1)当
时,根据定义证明
在
单调递增;
(2)求集合
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9021fa0cc7427f534fbf1ec1db79c4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c0070f5fd205c3c48a41bd865a7049b.png)
(2)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac3810dfe2b1eb718bae23bf0bab35e.png)
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5 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f146ec56628ed9e1fc34b6157733cfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fde91bd6a132a87ddf429c0616df2fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
您最近一年使用:0次
6 . 已知集合
,则集合
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b712903d11cb69b415c3794d07751f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 已知集合
、
,
,若满足
,则称集合
为正序集合,
,若满足
且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cddf5a3a5b55043f5f08c91c821fcf72.png)
,称集合
为波浪集合,若
,则称集合
为正序集合
的波浪集合.如正序集合
的波浪集合为
.已知正序集合
,则集合
的波浪集合的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da789bf1d330f0fd9060e14fe30af393.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55faf5a2518cfafbd16cd54542a16568.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbb4a0475eeaf8f3c163712c0ffc6aeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39b08e18d4cff5287425ec1ebb74cede.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cddf5a3a5b55043f5f08c91c821fcf72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c8540d30ff822582b9f942f45a71d0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b26bbb11e932ddb26a9088e7fc33e87b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f51bdfe12a443002d2eb220c4f74a7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4677f5df67e9727194c888a71e1727e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.13 | B.14 | C.15 | D.16 |
您最近一年使用:0次
解题方法
8 . 设函数
表示不超过实数
的最大整数,则函数
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/216911d8b6e9aa5e6e401f45b7660d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cff16e4ab30fec5aa902da7cc553d484.png)
您最近一年使用:0次
9 . 对于集合
和集合
,若满足
,则集合
中的运算“
”可以是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/137cb2d5955f58d370267590f37125f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dda3740e9c2568654e4101c03c95f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c458592ba2d5ddd559b8720438a8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
A.加法 | B.减法 | C.乘法 | D.除法 |
您最近一年使用:0次
10 . 已知集合
,且
,给出下列命题:
①满足
的集合
的个数为
;
②满足
⫋
的集合
的个数为
;
③满足
⫋
的集合
的个数为
;
④满足
⫋
⫋
的集合
的个数为
.
其中正确的是______ .(填上你认为正确的所有命题序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab20b8212340e97321f421a74de3af4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eae51f0310b87cde2e206643e9d25a5.png)
①满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24b70c88f46920bc6c3b0ed8d900f90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aa3ccc967a75d0739e71f8df80b5b76.png)
②满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/366749e18358402f70feb02785251caf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c89ae078ee147741e42b344b3d20776b.png)
③满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22882310035db6d3d953e060b0c91733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa3e84efcba619b04bc1a89e68f1c507.png)
④满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d67e9f11658eb229c3f75eb3ff71ac23.png)
其中正确的是
您最近一年使用:0次