1 . 下列各组函数中,表示同一函数的是( )
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
解题方法
2 . 已知命题
:函数
且满足
,命题
:集合
,
且
.
(1)分别求命题
、
为真命题时的实数
的取值范围;
(2)若命题
、
中有且仅有一个为真命题,求实数
的取值范围;
(3)设
、
皆为真命题时
的取值范围为集合
,已知
,若
在全集
中的补集
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41546cdbe35f22b9a45120b1cb0b7b70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6086d3e282c64e691c77a8b9e1683f1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c86eef5bd3a66673796e61f7f600ffe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b2bfd4065faec1ff0782084efb49dc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
(1)分别求命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/370a762fd78c04bd58f820c733fc3a96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c38ab2d47b70ad4da82da6f26542e468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
3 . 国家为了加强对酒类生产的管理,现对酒类销售加征附加税.已知某种酒每瓶售价为70元,不收附加税时,每年销售100万瓶.若征收附加税,规定税率为
(即每销售100元要征附加税
元),则每年的产销量将减少
万瓶.如果要保证每年在此项经营中所收取的附加税额不少于112万元,那么附加税税率
应定在什么范围?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff40b5cda2cacc8b0915b8dd8ee866e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b6b4155bc47ea1663b6dcafe71c08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff40b5cda2cacc8b0915b8dd8ee866e.png)
您最近一年使用:0次
4 . 已知关于
的不等式
.
(1)若
,
,求不等式的解集;
(2)若不等式的解集为
,求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80e3ca1cbb8d2ef951c0c08d33af082.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daba2443d14373caa012a226b08ab9ac.png)
(2)若不等式的解集为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44fd3d405c93fb16ea10a879db5301bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
5 . 已知
,
且
,
且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/088c06a4fb2ad650001acf6427dcf6eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135f0bdc62bc204337d7d01d31088372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2338b708fdb65059623cc53a729b2a52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2122e3f1e76a635e58e4d54aa594c552.png)
您最近一年使用:0次
解题方法
6 . 给出下列命题中,真命题的个数为( )
①已知
,则
成立;
②已知
且
,则
成立;
③已知
,则
的最小值为2;
④已知
,
,则
成立.
①已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b0d6209361e6b57c5cf7b2c943030e0.png)
②已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11e0f1789623426ef9c89eafd7f5cdf6.png)
③已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827b1f9ae828142a4243382fb6ce91e9.png)
④已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ed37ee7432002cd0e0978b2012e184.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4484971c01d1e8ab0cd394362a7b597c.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
7 . 已知
,设
表示不大于
的最大整数,如
,
,
,则使
成立的
的取值范围是__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92c3c03a7329902da3c9c15aadece56a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8783f6d0b045e78f684564ca59104c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a15f59a2a04a1c1f1308f6916dc3e6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc448ba227abc2aeee6b555a645aebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
解题方法
8 . 已知
,则
的最小值为__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/321253a18562516d5a11a4fc8d52519b.png)
您最近一年使用:0次
9 . 如果光线每通过一块玻璃其强度要减少
,至少需要__ 块这样的玻璃重叠起来,才能使通过它们的光线强度为原来的强度的
以下.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f733b1ceeead9ff892539d46a23f3626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dceb8518b45d199d0b32e6e0e46b68ee.png)
您最近一年使用:0次
2023-02-01更新
|
128次组卷
|
2卷引用:上海大学市北附属中学2021-2022学年高一上学期期中数学试题
名校
10 . 化简
(其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d528d8dd57d1701f57af7b875335414.png)
__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb2b68c6c953dc31dcbde1509633515.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d528d8dd57d1701f57af7b875335414.png)
您最近一年使用:0次
2023-02-01更新
|
347次组卷
|
3卷引用:上海大学市北附属中学2021-2022学年高一上学期期中数学试题