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1 . 已知
,且
,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed4224248fe3bbc348eda59425fd726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6512a0304e5826f3132f642e5c1feef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39d1d88189726ae99c309644fca3494.png)
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5卷引用:山西省忻州市2023-2024学年高一下学期5月月考数学试题
山西省忻州市2023-2024学年高一下学期5月月考数学试题河北省保定市定州市第二中学2023-2024学年高一下学期5月月考数学试题河北省廊坊市文安县第一中学2023-2024学年高一下学期5月月考数学试题河北省保定市定州中学2023-2024学年高一下学期5月期中考试数学试题(已下线)专题03 平面向量的数量积常考题型归类-期末考点大串讲(人教B版2019必修第三册)
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解题方法
2 . 已知正六边形ABCDEF的边长为4,点P为边DE上的一个动点(含端点),则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a302ee9825909922d7c0fa859e8735c.png)
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3 . 已知
,若
与
夹角为锐角,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/065f7b523efdd46d8a06dac287fb6ff5.png)
![](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/294f5ba74cdf695fc9a8a8e52f421328.png)
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4 . 在平行四边形
中,
,
,
,点
在
上,满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c28c24bee3d8d73b874f9ad15f7501f.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71296221aa4bae6eaeb6a2968f427818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c28c24bee3d8d73b874f9ad15f7501f.png)
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5 . 在
中,满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b351a393ef4d8cc245396e59b819906d.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd01f8d99637871de828cb6b87ec7b33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b351a393ef4d8cc245396e59b819906d.png)
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6 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7183b12510167f930fc59084add0601f.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c823ace231970b1608da2795d4794fd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3744ee15af01a8e7c0f126edb5f68132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7183b12510167f930fc59084add0601f.png)
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解题方法
7 . 已知
:向量
与
的夹角为锐角.则实数m的取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcbdff1c18a06f419c34f0c1ef4546f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a3f897e3a64d0ed73692c8a5211cf4b.png)
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8 . 已知
,且
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e309b13d393cc482e1f75954c95d98b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/046387911745f43ff3b6804ea58eb26a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9da049c686ff81df5d6645ef51e993.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e309b13d393cc482e1f75954c95d98b.png)
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解题方法
9 . 已知向量
,
,且
,则向量
与
的夹角为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe6c4f0b82737dba8a08828e5dd40fba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e405db6c09d6ab5739cabbb63cd3b3bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d261c56c245a423cc3572a7b6f54870f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
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解题方法
10 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82a355281002ce7d471d83e59da0454.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d176af0a00680162d71e477f0a18d694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82a355281002ce7d471d83e59da0454.png)
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