解题方法
1 . 已知
,方程
在
内有且只有一个根
,则
在区间
内根的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4623122fde215f997592eb63b7574ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b650820d7bed48ed67a2869ad8c65ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/349bdc41cbb1ec0311f677ed7efe7066.png)
A.2013 | B.1008 | C.2016 | D.1009 |
您最近一年使用:0次
2 . 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
3 . 已知函数
,若对任意实数
,存在实数
,使得
成立,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f39b2eeeb4bd22d5fe5162ec574def28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d4310340d63dad869fa03cbf7b1367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
4 . 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
5 . 定义:
,若函数
,将其图象向左平移
个单位长度后,所得到的图象关于
轴对称,则
的最小值是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3070b64312b35c087afe70f52820e7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d3a6cbccfe4121dc84b45c3dfa53f2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1f07948e9258b482a2164ac871f90f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
6 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c40e5d359cbe3e461236930119d7329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a18798408a1b91fdb12deb79f0b562a.png)
A.1 | B.![]() | C.![]() | D.0 |
您最近一年使用:0次
2022-03-28更新
|
557次组卷
|
6卷引用:江苏省徐州市贾汪中学2020-2022学年高一下学期春季竞赛数学试题
名校
解题方法
7 . 设
,若
是
与
的等比中项,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ef024c58becb626b823dfd3ee99c1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec9a109b4ff41dc4d7716fa776f450f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4741556c029b5811318746d837cf246.png)
A.9 | B.10 | C.8 | D.6 |
您最近一年使用:0次
名校
解题方法
8 . 已知函数
,若
互不相等,且
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7c5e623257c3d07ab814ea77467937.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6637110325fc5bcb6337762aecf53d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d2d7ddd7ef3b6cde30018bc6a84b9e0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-03-06更新
|
701次组卷
|
2卷引用:黑龙江省鸡西实验中学2020-2021学年高中教师命题大赛数学试题
真题
名校
9 . 已知
均为锐角,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
.则
是
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e979f1720096d58dd316b03843c2fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00b5bb47ea526e3e383897ece150c3f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.充分非必要条件 | B.必要非充分条件 |
C.充分必要条件 | D.既非充分又非必要条件 |
您最近一年使用:0次
2022-03-06更新
|
465次组卷
|
2卷引用:黑龙江省鸡西实验中学2020-2021学年高中教师命题大赛数学试题
名校
解题方法
10 . 设
(
是虚数单位),其中
是实数,则直线
的斜率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e4fef8bb59359ed985230f0705baf1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ab50682ca88bfa5178e9c4b546a418.png)
A.1 | B.![]() | C.![]() | D.2 |
您最近一年使用:0次
2022-02-08更新
|
216次组卷
|
2卷引用:安徽省太和中学2022-2023学年高二上学期数学竞赛试卷