名校
1 . 已知向量
,
.
(1)求
的值;
(2)求
及向量
在向量
上的投影向量的坐标;
(3)若
,且
、
、
三点共线,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9210b479ac99b75932e76be029605c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0635dd7654629ef1dc976c116aa17dc.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3db87f99222f1705e122a6bd329c9f1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854e16eb319ee454088f5b527cf6c4d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7435c7d07764f709db0e264d1d7730b3.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
2 . 已知向量
,
.
(1)求
的值;
(2)求
及向量
在向量
上的投影向量的坐标;
(3)若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9210b479ac99b75932e76be029605c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0635dd7654629ef1dc976c116aa17dc.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3db87f99222f1705e122a6bd329c9f1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854e16eb319ee454088f5b527cf6c4d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66a371d3aabe9f8f7f652ab59243f48a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-04-18更新
|
1473次组卷
|
3卷引用:天津市北京师范大学静海附属学校2022-2023学年高一下学期第二次阶段性评估(期中)数学试题
名校
解题方法
3 . 已知向量
,
,
(1)求
在
方向上的投影向量的坐标;
(2))若向量
,求实数
的值;
(3)若向量
,满足
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bfe0bbb9eaaf228f0e5eef299902d62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d6cc05aeac9d9cef4432fdf53a71f3a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2780422eefb9e85b89074a1ba2a159d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433a8c622b44e1aa29e9989e6978dd7b.png)
(2))若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e95ffcd05c4a0069661cd813b055e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)若向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/203dade41d23f57cf5c045b9fc82d64c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b58fcfbfe5ce12dbdbb6982edb7dbbfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83634e314df24df73ae37d25a44d20e3.png)
您最近一年使用:0次
2021-04-01更新
|
925次组卷
|
3卷引用:天津市静海一中2020-2021学年高一下学期3月学生学业能力调研数学试题
4 . 已知向量
.
(1)用含
的式子表示
及|
|;
(2)设
,若关于x的方程
有两个不同的实数解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3597a4735b19171ca9fcbec595f37e99.png)
(1)用含
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39d1d88189726ae99c309644fca3494.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cd8bbf47b69bbd7a6263b041290d11.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28136b11d6c5f50628a805eb2e3a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/935e6bd0184a69d70d75ae3a8d94ffb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次