1 . 人脸识别就是利用计算机分析人脸视频或者图像,并从中提取出有效的识别信息,最终判别人脸对象的身份.在人脸识别中为了检测样本之间的相似度主要应用距离的测试,常用的测量距离的方式有曼哈顿距离和余弦距离.已知二维空间两个点
、
,则其曼哈顿距离为
,余弦相似度为
,余弦距离为
.已知
,
、
、
、
,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844ff0a8d04f677ed4b62cbe469a2d14.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c913b3abbf53d81fcf25bf83d4ae3756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6bd2c8662cceaf088a950cba5913456.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef2376fa0549e6fae46bae54d6ace942.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844ff0a8d04f677ed4b62cbe469a2d14.png)
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2 . 在
中,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd13e3ef5669b2a6e0e38643d5650860.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe7a93172d308a58200e3c722fe1072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ca51c826c63cdbf0cb806d74dc95a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd13e3ef5669b2a6e0e38643d5650860.png)
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3 . 已知,则
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2024高三·全国·专题练习
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4 .
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a2ee0520237fd63229ba321c7c4995.png)
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5 . 已知
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6834a22cc57e6dc022c74eae7dac76.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee6b1670b2b446ace5bc12d7385b8e78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bea6b2770142f41ca36610294fcc593d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc282dae4ac9132196ac5d13f63b901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fffbd9bb577b3e01a62fbffe11a3906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6834a22cc57e6dc022c74eae7dac76.png)
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9卷引用:广东省深圳中学2023-2024学年高一上学期期末考试数学试题
(已下线)广东省深圳中学2023-2024学年高一上学期期末考试数学试题陕西省渭南市三贤中学2023-2024学年高三上学期第三次教学质量检测(11月)数学(理科)试题(已下线)5.5 三角恒等变换-同步精品课堂(人教A版2019必修第一册)(已下线)5.5.1两角差的余弦公式(第1课时)(分层作业)-【上好课】(已下线)5.5 三角恒等变换(AB分层训练)-【冲刺满分】云南省曲靖市宣威市第六中学2023-2024学年高一上学期12月月考数学试题(已下线)专题05 三角函数公式及三角函数性质的综合应用 (1)-【寒假自学课】(人教A版2019)(已下线)专题08 两角和与差的三角函数-【寒假自学课】(苏教版2019)(已下线)10.1 两角和与差的三角函数-【帮课堂】(苏教版2019必修第二册)
6 . 若点
关于
轴的对称点为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85527d190d4e1d6bac4145d1c716e65e.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3655e31a464d20a6777fd04569b48d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b4c44f5a061df2e6ca5582c9e45529.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85527d190d4e1d6bac4145d1c716e65e.png)
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7 . 已知
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56724d0c772772deb4c2d11137281a33.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b56b2ca1f5cc38c190044490dd0e57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75d28eab3b97cbeff2ff5527a0603ed1.png)
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8 . 已知
,
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6834a22cc57e6dc022c74eae7dac76.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a892dbcef7934d97016bb190d94e0bc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c49f1d4e43e034461b72cbb4b15b7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcbe8b4bcd32e5a64ebfd873f8cbb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a42eb1800ada763185e65c8dc72f76a.png)
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9 . 在
中,角
,
,
所对的边分别为
,
,
,
,
于点D,且
,则线段
长度的最大值为_________ .
![](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)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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10 . 已知函数
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65908f389a3a115698ae5de4eb18cb78.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f28535db3a04425b37c660c53e1c70c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b0f11e950b8b7aade59842ab60b7d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65908f389a3a115698ae5de4eb18cb78.png)
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