解题方法
1 . 如图,在
中,已知
,
,
为线段
上一动点,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c90a653e69210102dc331cb07c563c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0c3c8cc8741df2b5d92c70c67b5dbca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b702905d2235c895c878432929c43e76.png)
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2 . 已知正六边形ABCDEF的边长为2,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6f2bd8713ee6d0873826a2aa935b9e.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6f2bd8713ee6d0873826a2aa935b9e.png)
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3 . 在
中,角
,
,
的对边分别为
,
,
,且
.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
_______ ;若
,
是边
上的高,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705d0cd198f423d1a7d6b9a7999c18ee.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24b6255489ac5a06717cbe9ff718face.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9c2831fe21a5f34e06f87de5f8f9a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6655e2fa64a32cd12fe0279afd65d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a4827fe635f4cf5dc9d7d24b357d63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705d0cd198f423d1a7d6b9a7999c18ee.png)
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4 . 已知向量
与
的夹角为
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a349bb803a62f2a35f62d2e568a12b80.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f726edf8cca26e1011faa7101c506e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a593f5a5b0b6d5a3e4bb0481875af6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a349bb803a62f2a35f62d2e568a12b80.png)
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2024-06-08更新
|
273次组卷
|
2卷引用:广东省汕头市潮阳区河溪中学2023-2024学年高一下学期期中考试数学试题
解题方法
5 . 已知
中,点
在边
上,
,
,
,则
的面积为______ ;若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c978d92edf0c4c1ef8620c17df75d35e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/284e282bb1d9fbf8634b3506ee5358ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e44255421dbf68d84f86551b34a57656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8e39bee1445161f91213c83b498b8ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1a106e4f1a3d3f9efddb4dc4c63664.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c978d92edf0c4c1ef8620c17df75d35e.png)
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6 . 已知
的外接圆半径为1,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ed86beeec5a7e4201187c8d7681fc6.png)
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2024-05-08更新
|
418次组卷
|
4卷引用:广东省广州市增城中学2023-2024学年高一下学期期中数学试题
广东省广州市增城中学2023-2024学年高一下学期期中数学试题重庆市育才中学校2023-2024学年高一下学期阶段测试数学试题(已下线)专题03 向量的数量积-期末考点大串讲(人教B版2019必修第三册)(已下线)专题2 以平面向量数量积为背景的最值与范围问题【练】(高一期末压轴专项)
7 . 设
半径为
,若
,
两点都是
上的动点,
的最大值______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669e8dfb2b45e6f74d86408343a18fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.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/669e8dfb2b45e6f74d86408343a18fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a47b376264d525c790ebad49a849c08.png)
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8 . 已知不共线的三个单位向量
满足
与
的夹角为
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae951e0bb5a2a406f1572fc1e4964265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f16da69b18ff475492deb3f4777b9da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
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2024-05-04更新
|
1109次组卷
|
2卷引用:广东省广州市广州中学2023-2024学年高一下学期期中考试数学试卷
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9 . 如图,在
中,
分别为
的中点,
为
上一点,且满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c8d4fc99c32d6503205f48b2c07ab91.png)
______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673bf74721ce289eed40fc505697fe38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cca04b2a2b61d62a809776670a60c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7720a24ccafd483cffe43b95be4ee20d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c8d4fc99c32d6503205f48b2c07ab91.png)
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10 . 平面上的三个力
作用于同一点,且处于平衡状态.已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef2b696e30cb23466facd248fb521ea.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d66f6559857f4e9b12e57c4bba39733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf8a37743b7d5ebd772a6c4403bde970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eab5a752774463a0a0b7ccd56a0a3f19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef2b696e30cb23466facd248fb521ea.png)
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