解题方法
1 . 如图,在平面四边形
中,
,
,记
与
的面积分别为
, 则
的值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27db558e8db4c957654c8e5cecd2d2dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b899bfd0597444039b66657878d37533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a783e5ffcf7a4ea9e531ea76199487.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b982b4ed3b75609bda6af3914986d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ae89bd2dd0a18e1afb5b1a1abd0efd.png)
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解题方法
2 . 我国历史悠久,各地出土文物众多.甲图为湖北五龙宫遗址出土的道家篆书法印.图乙是此印章中抽象出的几何图形的示意图.如图乙所示,在边长为2的正八边形ABCDEFGH中,P是正八边形边上任意一点,则
的最大值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab7aaa871ceb78e5b80b531a7cf4f1c9.png)
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3 . 已知
是边长为1的正三角形,
是
上一点且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f865cb2e4a1c575b331e252a21d7d7fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07377d977ef6a8f518b3004564544e5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce5d6c8be7019d123c0b1d4ab9e52814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d476da94dcade5f83541f3fca22a1039.png)
A.![]() | B.![]() | C.![]() | D.1 |
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4卷引用:浙江省宁波市镇海中学2024届高三下学期适应性测试数学试卷
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解题方法
4 . 在
中,
,则下列选项正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d14700df9fd609cd56da233d38ba9b08.png)
A.![]() |
B.![]() |
C.![]() |
D.向量![]() ![]() ![]() |
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5 . 如图,在矩形
中,
,
,点
为边
的中点,点
在边
上.
为线段
上靠近
的三等分点,求
的值;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e6f0e94393fc6bbd9b4b83ede534ac.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e6f0e94393fc6bbd9b4b83ede534ac.png)
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浙江省培优联盟2023-2024学年高一下学期5月联考数学试题(已下线)专题01 平面向量(1)-期末考点大串讲(苏教版(2019))(已下线)核心考点2 平面向量的数量积 A基础卷 (高一期末考试必考的10大核心考点)安徽省阜阳市第三中学2023-2024学年高一下学期第二次调研(期中)数学试题(已下线)【高一模块二】类型1 以平面向量为背景的解答题(A卷基础卷)
6 . 已知向量
,若
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deb3b981996d4a8dac628be3f3134071.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4399b289ba6ff9981feed3e835532f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
7 . 已知
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af3f1f7a4e66c3fa7a04575b8cb74f8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7db329d12aaff89b0bd6ebb469de207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90a7eda6116abb7325ec0b57342bde2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87f262e117a1383aab93f70548f47ca3.png)
A.![]() | B.16 | C.![]() | D.9 |
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解题方法
8 . 已知向量
为互相垂直的两个单位向量,若向量
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a4a9537264201de1f4c0b5dd236077.png)
,则当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
__________ 时,
取到最小值;此时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e00665a8c1971c54615a013740a0171.png)
的最小值是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10814bc3db929e79874befe96cf4e3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5719d3ef48c90aba13985cd42f9469f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a4a9537264201de1f4c0b5dd236077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3000ec4b24dc6547cd7aaafa7c4b4405.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87aafc1e049160afcf94f26f330012be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e00665a8c1971c54615a013740a0171.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59adb100c1a95619a62c5fd5a07aade1.png)
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9 . 已知向量
满足
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae951e0bb5a2a406f1572fc1e4964265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97cb6bb582bb4d231c2b24febe19c6f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/144e58c38f69677769e88ce3a7dceb38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01499a2db010085fba3e561c16284395.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 已知
,
是单位向量,且它们的夹角是
,若
,
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5e0c3d054939ae02fb12a31ef91293.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab88ab8dced45537ebfb4ab6275e8102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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