1 . 已知向量
.
(1)若向量
与
垂直,求实数k的值;
(2)若向量
满足
且
,求向量
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6589d324c6860dbfa25cbd2ba598325.png)
(1)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b83c5803cc8c05849028a57c4bd4ee72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40436543cc51f42b5b5d93e55a407ce4.png)
(2)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a917d46867311a65c8397632c8af9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67e8e00c479acd45e112ad9a2d260518.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
您最近一年使用:0次
名校
2 . 已知向量
,
.
(1)若向量
与
互相垂直,求
的值:
(2)设
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5463fb0b7d03747aa4d680620ca81be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b1305dff4fc89f3e8bc75fa7c258de.png)
(1)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed492f7b29166ba5c1f0023b05a439c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384a33a75de170e49f55eb2b38cfa001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aad3a4a780058a662e53094557b28f15.png)
您最近一年使用:0次
2023-07-11更新
|
224次组卷
|
2卷引用:河北省保定市第一中学2023-2024学年高一下学期贯通创新实验班开学考试数学试题
解题方法
3 . 如图所示,矩形
的顶点
分别在
轴,
轴正半轴(含坐标原点)滑动,其中
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/0808d7af-8a9d-4022-a722-69a8df6cb08f.png?resizew=133)
(1)若
,求
;
(2)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65436512ecbaefba4ac8123c55094211.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459fe0a06c1ef107516ddd97d084350d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/0808d7af-8a9d-4022-a722-69a8df6cb08f.png?resizew=133)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/accb261b6c6ed7fe6e3f558d34567bbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ecdb71409c1dbae6877684189d06899.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/540623f49be6594275a02059f6578f7e.png)
您最近一年使用:0次
14-15高一上·江苏常州·期末
解题方法
4 . 在平面直角坐标系中,已知点
.
(1)若
,且
,求角
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfe9db4485e5f9624ba6673ecf48a898.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b7fe96b4fde176f8d04b13eadf29142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06f37bd322af6e273ceb66bac49a716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/568822de938a31fe29a98efea813bfca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05425711d6b6a89d8257ab90fde2c0d7.png)
您最近一年使用:0次