1 . 设复数
,
为虚数单位,且
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa3d3ca8ae9c034b384ba8267808553.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9686a6bd64d328579a4bc1c3e19326.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579743813856e2a9183f5ec6eaaefbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcbe8b4bcd32e5a64ebfd873f8cbb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70c2519610d6d1d6d0855b0f27dfc5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa3d3ca8ae9c034b384ba8267808553.png)
您最近一年使用:0次
名校
2 . 若直线
与函数
图象交于不同的两点
,
,已知点
,
为坐标原点,点
满足
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8499dbc3af38c3e56b8b0f0927949fdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9160c95598c14f8a1d2f4efa09157cb.png)
![](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/36044989f21fffda971cdb6fc8f03f90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/518dfce0a9aab04171383586c5077146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e2147da43fa26c44e38465166e443e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-03-12更新
|
413次组卷
|
3卷引用:甘肃省张掖中学2023-2024学年高一下学期4月月考数学试卷
名校
解题方法
3 . 已知向量
,
满足
,
,
.
(1)求
与
夹角的余弦值;
(2)求
;
(3)在平行四边形
中,若
,
,求平行四边形ABCD的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02af59613596682734297aebc578801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e405db6c09d6ab5739cabbb63cd3b3bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe0c5d119ec2029a51b2592968d8f49.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16111d1425b87ba82ea6a706d1dfb3ef.png)
(3)在平行四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f3adc4ed291596abf3bb93ae7a075d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e984585ddf28c039219afcebf229de7.png)
您最近一年使用:0次
2024-02-20更新
|
885次组卷
|
6卷引用:甘肃省张掖中学2023-2024学年高一下学期4月月考数学试卷
名校
4 . 已知集合
,则集合A的真子集个数为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f11cd9cfc391b23c7f14f91bcbdf3a7e.png)
A.4 | B.3 | C.16 | D.15 |
您最近一年使用:0次
2023-12-30更新
|
866次组卷
|
5卷引用:甘肃省天水市第一中学2023-2024学年高一上学期12月月考数学试题
解题方法
5 . 已知集合
,
.
(1)当
时,求
;
(2)若______,求实数a的取值范围.
请从①
,②
,③
这三个条件中选一个填入(2)中横线顶处,并完成第(2)问的解答.(如果选择多个条件分别解答,按第一个解答计分)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf349c330b1e8de20da8294c74c0efc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e187f1ad0a35028136056f40123b44.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若______,求实数a的取值范围.
请从①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c7593a26dc6f12b1c25ba2ea1389fd3.png)
您最近一年使用:0次
名校
解题方法
6 . 已知二次函数
满足图象关于直线
轴对称,且过点
.
(1)求函数
的解析式;
(2)若
,比较
与
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af840c6111ed53db713cd8645cf53820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e88ebfb5c0d6cce558b515be06404d.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e552e04f5d1cd7f3f68155132bbe964d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54015ff5b49e3283901da1291b6b921d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f6872ffb1934339c53c2c2282d5889.png)
您最近一年使用:0次
名校
7 . 已知集合
,则满足条件
的集合
的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71ffe339b09b4342def9ad4ba60572f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.3 | B.4 | C.7 | D.8 |
您最近一年使用:0次
2023-09-10更新
|
313次组卷
|
3卷引用:甘肃省兰州第一中学2023-2024学年高一上学期10月月考数学试题
名校
8 . 设全集U为实数集
,已知集合
,
,则图中阴影部分所表示的集合为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37066d489b2c4e6b30d2f2dea63b47d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a792fec727e419e9eaa4954e279865fd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/16/2455ab30-a041-430c-81b4-3a3788afce46.png?resizew=120)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
您最近一年使用:0次
2023-08-15更新
|
769次组卷
|
4卷引用:甘肃省张掖市某重点校2023-2024学年高一上学期9月月考数学试题
甘肃省张掖市某重点校2023-2024学年高一上学期9月月考数学试题辽宁省沈阳市第三十六中学2022-2023学年高二下学期6月月考数学试题宁夏吴忠市盐池中学2024届高三第一次月考数学(文)试题(已下线)宁夏石嘴山市第三中学2024届高三上学期第二次月考数学(理)试题
解题方法
9 . 已知
中,角A,B,C所对的边分别是a,b,c,向量
,
,且
.
(1)求A的值;
(2)若
,求
周长的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4091f124f9d4861823c6c8f1ddabcc54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a906580dbd733f4139099557c19a9bf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7cb5138a03b19266f82223899a614f7.png)
(1)求A的值;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
解题方法
10 . 集合
,
,
,则图中阴影部分所表示的集合是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860ebb6f76cd3cb9a265dfc233002a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d506ee1e2c22d91988836f3e2ff4bbb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61caacfd30c1decb6426e14cd5c0c3a7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/16/77b12932-9f34-49f9-b6ba-87a321f36eda.png?resizew=146)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次