名校
解题方法
1 .
与
的夹角为锐角,
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6fcec24159ada8e1d4caf18008a2137.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2 . 已知复数
满足
,则
的虚部为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/315f43e5af045f0a7e2195223630cd42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
您最近一年使用:0次
名校
解题方法
3 . 已知复数
.
(1)若复数
为纯虚数,求
;
(2)若复数
在复平面内对应的点在第四象限,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4366fa9c602566f93056c558e06e7bcb.png)
(1)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41042207515dd2e8349c805e6aee400.png)
(2)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
您最近一年使用:0次
4 . 如图,为测量山高
,选择
和另一座山的山顶
为测量观测点,从
点测得
点的仰角
,
点的仰角
以及
;从
点测
.已知山高
,则山高
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d18e26590da465edaf3cf67b41acf690.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a84b65d912559083735708e7f7a6b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd86e942165331c77086cd2231af84a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5990c3408a8139827d12b7009c7b3a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3f262b817cd1cdd0493407ba9b11bd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2b3247afa684b10c8e1da99cf33d5b.png)
A.150 | B.200 | C.250 | D.300 |
您最近一年使用:0次
名校
解题方法
5 . 在正方形
中,
,
分别是
,
边的中点,
与
相交于点
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3533837e3d08c461dea031a44e5424d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eb4713985fd15713e52c5001059345c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 正四棱锥底面正方形的边长为4,高与斜高的夹角为
,则该四棱锥的侧面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
7 . 下列叙述中,正确的是( )
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() ![]() | D.若![]() ![]() ![]() |
您最近一年使用:0次
解题方法
8 . 已知样本数据
的平均数为
,方差为
,若样本数据![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eee9c84dd8dbb40b72646fcd01008f4.png)
的平均数为
,方差为
,则平均数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ae6558e11384a40f3a338b73385ee1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/671f43c79d612c93a6d160335e86e177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eee9c84dd8dbb40b72646fcd01008f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c6cf935bfa46b4a6420a081d0abbc00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d61af5b606d5ec1336abe828f44b4e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62d57050815a2933222083d536052e3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
A.1 | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
名校
解题方法
9 . 已知向量
.
(1)若
,求
的值;
(2)若
.
①求
与
的夹角
的余弦值;
②求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/376bf07c9fa02712d8661de95b59b44a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d76ee2e81f447f84a3e0b39c0388ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e60e2180220297601db28850e5122807.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a00212b47f47f073833c3001b3463ac7.png)
您最近一年使用:0次
2024-06-08更新
|
1157次组卷
|
2卷引用:天津市第四十七中学2023-2024学年高一下学期5月期中考试数学试题
名校
解题方法
10 . 如图所示,
为线段
外一点,若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bfaf61a42afa433bb0c39c09d7ff940.png)
中任意相邻两点间的距离相等,
,则用
表示
,其结果为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e835b233dea6fc265232a7306f05f597.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bfaf61a42afa433bb0c39c09d7ff940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381e7130b20a45ddb91ccfcb037042c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3daec75ea140ec396ea83ca429b0b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a3291b124563eb0416de6508fc9f2a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-19更新
|
331次组卷
|
10卷引用:天津市南仓中学2023-2024学年高一下学期第二次月考数学试卷
天津市南仓中学2023-2024学年高一下学期第二次月考数学试卷陕西省咸阳市实验中学2023-2024学年高一下学期第一次月考数学试题山东省泰安市泰山国际学校2023-2024学年高一下学期3月月考数学试题山东省淄博市高青县第一中学2023-2024学年高一下学期期中考试数学试题北京市陈经纶中学2023-2024学年高一下学期期中练习数学试卷山东省济宁市兖州区2023-2024学年高一下学期期中质量检测数学试题(已下线)专题1 以线性运算为背景的复杂问题【练】(高一期末压轴专项)山东省济宁市2023-2024学年高一下学期期中数学试卷福建省安溪第一中学2023-2024学年高一下学期5月份质量检测数学试题(已下线)【讲】专题五 平面向量的综合问题(压轴大全)