名校
解题方法
1 . 设
,
.
(1)求
;
(2)若
,且
,
与
的夹角为
,求x,y的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19702ae2c72308f9973ae4c77a62a72e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/127dfac893abd9e5455a561ef6134a94.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7be4359335d6e4f961bf1913d47b904.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba4f0f79f207d6baa4441f0f7a2a8ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/970afbae907232f2fb408e947d1c66d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e163480714acc9dae5005cac65d217d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
您最近一年使用:0次
2023-05-11更新
|
256次组卷
|
2卷引用:广西百色市平果市铝城中学2023-2024学年高一下学期4月月考测试数学试卷
名校
解题方法
2 . 已知向量
,
.
(1)若
,求
;
(2)若
,求向量
与
的夹角.
(3)若
夹角为锐角,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9338520b3ccd2d16e0db9acf8fdd1465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bf7c08c9f17ff96a02535f767ef96b0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dced91de1b8c38aa95ffee0e5dc202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b195aa36a3c2753ebf08cb464c52ad1e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc895959e9bc92294dc9dd2263dbf0c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2022-06-20更新
|
936次组卷
|
5卷引用:广西百色民族高级中学2021-2022学年高一下学期期末数学模拟题3