解题方法
1 . 已知函数
满足
,且
,当
时,
.函数
.
(1)求实数
的值;
(2)当
时,求
的解析式;
(3)设
,是否存在实数
,使不等式
在
时恒成立?若存在,求实数
的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0702195255c51922822a8185339b17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed670b1f668778c6243f3f7470ee7d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/389c5eb9278242f235dfcb45e687f7a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa755c7216812b2cd333563f6acd81a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d378143a598defcc8adad769fd205173.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a0f0ee999bab322b1f5290fc8571cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/670fcbf66c7c5322f9bf2bec0d157ca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0e7e4a025141869980b3a1aab55b8a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2 . 已知点
,点
是
内(包含边界)一动点,请你结合所学向量的知识,求出
的最大值为___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d15519119f08636c1e7425418d30b39d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcda62388ba3f9747413103bd48e1630.png)
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3 . 定义向量
的“伴随函数”为.
函数.
的“伴随向量”为 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a854b25cf3b9e8e29344c273fbcf0da.png)
(1)在
中,已知
点M 为边AB上的点,且
求出向量
的“伴随函数”
, 并直接写出
的最大值
;
(2)已知向量
函数
求函数
的“伴随向量”
的坐标;
(3)已知
向量
的“伴随函数”分别为
、
, 设
且
的“伴随函数”为
,其最大值为m. 求证: 向量
的充要条件为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b7fac7580249609cae6e1661f46603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a7ac204567c63bb09f9f77eccb4f33f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66655b7a6825b124ce596197bf2aa14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a854b25cf3b9e8e29344c273fbcf0da.png)
(1)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f700c81072d62ea8dab79827fe079ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/118155f8e69b4357c10c268e1626e1cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)已知向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96c97a2082d6f10ee9f1f9fdfcb40357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dce7cf69b669aed4b8cfc79abf4e302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d48e306c486d1a8d5c94babc242e13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5b3d769fd3c7f81cdf25971039e9b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee1494c135e3724ebeb35aa2c0e1bf1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91174b2336306191ba275a87864172b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce3b04d127bd23abc88cdd77d091a7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99586040e486554f9a561c6a1567c10.png)
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4 . 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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e28a96ee1e62b7fbc1fb0257ad0deeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a15405a264f0f2ca50fe3b423be7512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0159c58f814125e55bb888d906e6697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b67d67c9d32e76d5f4172a470232a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360e05161aad124e6c133dc9e97f88f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd2674af81793d6703e457b954c79ee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30e8da79f5c6ec3b6401e03f27141e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844ff0a8d04f677ed4b62cbe469a2d14.png)
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5 . 如图,已知扇形
的半径为2,
,点
分别为线段
上(包括线段的端点)的动点,且
,点
为
上(包括端点)的任意一点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4819c39c281427826e1b3f7a4c2b720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f788fb0059b7356dc6c7811f46057e66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a5e484dfef494d27bc35ae7b8cf75d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eac3a2d9f738ba2f6e55e21aab2506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
A.![]() | B.![]() ![]() |
C.![]() | D.![]() |
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2024-05-24更新
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|
2卷引用:广东省东莞市东莞中学2023-2024学年高一下学期第一次段考数学试题
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解题方法
6 . 设平面内共起点的向量
的终点分别为
,且满足
,记
与
的夹角为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46fddc1f1c50aab4de7fff286d691b97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d12593b86f4965fb5b285ff88f6d435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
A.![]() |
B.![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() |
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解题方法
7 . 已知两个不相等的非零向量
,两组向量
和
均由二个
和三个
排列而成,记
,
表示S所有可能取值中的最小值,则下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f9c91af174ebe66c921f52db385a6c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80cf117684713abb259c5a8e5aa2eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6976da725a784a7d0f4fef50d1276205.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/0373b313a9dcb5835d05401085f6bc0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494f173fed024b28d9e2bc7a96362d3d.png)
A.S有5个不同的值 |
B.若![]() ![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() |
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8 . 如图,点
分别是矩形
的边
上的两点,
,
.
、
分别为
、
的中点,求
;
(2)若
,求
的范围;
(3)若
,连接
交
的延长线于点
为
的中点,试探究线段
上是否存在一点
,使得
最大.若存在,求
的长;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ced9844fe2e052c70486af0740afa63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c066b8e15742b2ef57131636e54ca0f4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50651ac65f1837e81ce47b71c5f4eeaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc5604d3e156df3e7ccca0ccec9c9d45.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1697dd04381cd28fece406c739960b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604ed5bece96d5e878aa1c914acc2f9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e3d3a8bb04c4f34676aa6166eac112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
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解题方法
9 . 已知函数
.
(1)求不等式
的解集;
(2)
,将
的图象向右平移
个单位后得到函数
.若对任意的
,都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcaf2bf2e03dd6d33e03b69c5a318b90.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/195a523f1aa349541bb5b846bcc594dd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc5c3594ca8db401fbfdc7ddb57b13c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667466e8b8b971a8ea50cd080501577e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a777674bdd16996988b6ba37de5c6142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-05-08更新
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2卷引用:广东省河源市部分学校2023-2024学年高一下学期5月期中联考数学试题
10 . 已知函数
满足
0,且在
上单调递减,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3629fc26ba72d06828e15f73a0239e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa4d47243b70e8a99d92acda011d9f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e67369d0580ed8c87e2f33b07b737426.png)
A.函数![]() ![]() | B.![]() ![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-05-08更新
|
1147次组卷
|
2卷引用:广东省部分学校2024届高三5月联考数学试卷