名校
1 . 定义函数
的“源向量”为
,非零向量
的“伴随函数”为
,其中
为坐标原点.
的“伴随函数”为
,求
在
的值域;
(2)若函数
的“源向量”为
,且以
为圆心,
为半径的圆内切于正
(顶点
恰好在
轴的正半轴上),求证:
为定值;
(3)在
中,角
的对边分别为
,若函数
的“源向量”为
,且已知
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9153386601e89709ded16e6e56cc86b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e80896903107cb0ec517fedffa3f735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e80896903107cb0ec517fedffa3f735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9153386601e89709ded16e6e56cc86b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ead0f45df9fc9e5a6a90a048daf15ce0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9b0339e96e32d6fa1a092824850ef8d.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6183bf0dcb6c744b27f6963007bda5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40589f60d5b9e76464c084d80fe92c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeca565ad5dfdba18cf431dd3b84c57e.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c49ca8562b98657ca9c499093f7233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/896785f1902334350af510775d152f98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d76137ec77bd3221aa3842cabebe4910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3941f79eb3ae64e0f735ae45308e5b19.png)
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2024-04-07更新
|
724次组卷
|
2卷引用:重庆市巴蜀中学校2023-2024学年高一下学期3月月考数学试题
名校
2 . 给定正整数
,任意的有序数组
,
,定义:
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1fb7a18149d91f94f0df6809403f9ed.png)
(1)已知有序数组
,
,求
及
;
(2)定义:n行n列的数表A,共计
个位置,每个位置的数字都是0或1;任意两行都至少有一个同列的数字不同,并且有只有一个同列的数字都是1;每一行的1的个数都是a;称这样的数表A为‘
表’.
①求证:当
时,不存在‘
表’;
②求证:所有的‘
表’的任意一列有且只有a个1.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ed67043f7ad15e42d9e92b58adf81c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cfcca94c8524dfefe471fd55be83736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f00e0cc3c5765444157900fee292f7a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1fb7a18149d91f94f0df6809403f9ed.png)
(1)已知有序数组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3500e2bc7384abda0ca78edaec3f6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778b1b95b10df70df052e1e1ceaca2c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ac911432046e3e6c58c5c599d54216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/468eb380831acf6234e8b8aac2267daa.png)
(2)定义:n行n列的数表A,共计
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ceef1abeeef220b4fe5f7d96feedd90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1ef8b58951134267aea088bb1ca4c4.png)
①求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac3649308b528fd56545ba102dc42d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1ef8b58951134267aea088bb1ca4c4.png)
②求证:所有的‘
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1ef8b58951134267aea088bb1ca4c4.png)
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3 . 四边形ABCD内接于⊙O,
,对角线AC、BD相交于E点.
.
①求证:
∽
;
②求
的值.
(2)如图2,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b38cb02ffb6d8ff5b8cf64370aa8635f.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0005e1ef60f6ddc5f9a83e3de1ef3b2e.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3f7c1fd715395858fef59913b8d9262.png)
(2)如图2,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b179029a5e4b5ab5210f522544e49d.png)
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4 . 勾股定理,是几何学中一颗光彩夺目的明珠,被称为“几何学的基石”. 中国是发现和研究勾股定理最古老的国家之一. 据记载,在公元前1120年,商高答周公曰“故折矩,以为勾广三,股修四,径隅五,既方之,外半其一矩,环而共盘,得成三四五,两矩共长二十有五,是谓积矩. ”因此,勾股定理在中国又称“商高定理”. 数百年后,希腊数学家毕达哥拉斯发现并证明了这个定理,因此“勾股定理”在西方被称为“毕达哥拉斯定理”. 三国时期,吴国的数学家赵爽创制了一幅“勾股圆方图”,用数形结合的方法给出了勾股定理的详细证明. 如图所示的勾股圆方图中,四个全等的直角三角形与中间的小正方形拼成一个大正方形. 若中间小正方形面积(阴影部分)是大正方形面积一半,则直角三角形中较小的锐角
的大小为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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5 . 如图,以
的两边
分别向外作等边
和等边
,
与
交于点P,已知
.
![](https://img.xkw.com/dksih/QBM/2024/1/22/3416677041340416/3419628471492608/STEM/2813bd9be9c047ab9beded363954ed75.png?resizew=156)
(1)求证:
;
(2)求
的度数及
的长;
(3)若点Q、R分别是等边
和等边
的重心(三边中线的交点),连接
,作出图象,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d54431bbb28ebd98db5c1dc6083a75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb49df05f2e31d005735c3f14a21d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97898c0102c6bc620abb5ab7442550bf.png)
![](https://img.xkw.com/dksih/QBM/2024/1/22/3416677041340416/3419628471492608/STEM/2813bd9be9c047ab9beded363954ed75.png?resizew=156)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3ccd24d1cdb7db9844a4c20c62970a2.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add18fdf2049abff08a687b950f1cc1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(3)若点Q、R分别是等边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb49df05f2e31d005735c3f14a21d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1168cd6865542e2a2efe6f6f21caa214.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7b816eca15d4b7d060013df53edd53.png)
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名校
解题方法
6 . 已知函数
的定义域为
,
,满足
,
,令
,设当
时,都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea944fa5b7030c92f0d06e7e15c1c135.png)
(1)计算
,并证明
在
上单调递增;
(2)对任意的
,
,总存在
,使得
成立,求t的取值范围?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f21febe8749e5e598124c2f6bb4025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75c137b664f5c1b3368a55c3e7adb1db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5409f79d5899f4822deaf275df1739c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab409bb25958c2f01c73e26042c6f51e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea944fa5b7030c92f0d06e7e15c1c135.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d55ef0d1b7ea88d92fd6e1ecebb5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(2)对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/006dd721f6e19ee105cf6e3a10b69c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a47fb2689296e12a46e6a9b65e74ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9e805e0506d37973afc0664ae0a6af0.png)
您最近一年使用:0次
2024-01-25更新
|
369次组卷
|
2卷引用:重庆市渝中区巴蜀中学校2023-2024学年高一上学期1月期末数学试题
名校
解题方法
7 . 已知函数
的定义域为
,
,
,且
在区间
上单调递减.
(1)求证:
;
(2)求
的值;
(3)当
时,求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f41c7798e8266916b8501e3837194407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707f481ce3097ef1da3af9964bd36bb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9da1ddf59efd582614505be50e813af1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6bfefa5b41faae17987876d570685d.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5980a054af3e565d5d0511b14695aaf1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e861f148f57d5bcdd82cd1fec3d594.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13a3d8f7ee39ac3245c840a40f8af63d.png)
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2024-01-24更新
|
350次组卷
|
2卷引用:广东省广州市越秀区2023-2024学年高一上学期期末数学试题
解题方法
8 . 2023年10月17日至18日,第三届“一带一路”国际合作高峰论坛在北京举行,成为纪念“一带一路”倡议十周年最隆重的活动.此次活动主题为“高质量共建‘一带一路’,携手实现共同发展繁荣”,而作为“一带一路”重要交通运输的中欧班列越来越繁忙.下表是从2018年到2022年,每年中欧班列运行的列数(单位:万列).
(1)计算中欧班列从2018到2022年的平均运行列数;
(2)从2018年到2022年这5年中随机选取2年,求这两年运行列数和大于2.4(单位:万列)的概率;
(3)设2018年,2019年,2020年运行列数的方差为
,2020年,2021年,2022年运行列数的方差为
,从2018年到2022年这5年的运行列数的方差为
,试判断
,
,
的大小关系.(结论不要求证明)
年份 | 2018 | 2019 | 2020 | 2021 | 2022 |
运行列数 | 0.63 | 0.82 | 1.24 | 1.5 | 1.6 |
(2)从2018年到2022年这5年中随机选取2年,求这两年运行列数和大于2.4(单位:万列)的概率;
(3)设2018年,2019年,2020年运行列数的方差为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfbc29b47b83fdc5368770b7b1acb439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1295cbd36fdc55a55b549aa2dd5887.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f314812ee1e19b4e15c505afc40935c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfbc29b47b83fdc5368770b7b1acb439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1295cbd36fdc55a55b549aa2dd5887.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f314812ee1e19b4e15c505afc40935c.png)
您最近一年使用:0次
名校
解题方法
9 . 已知幂函数
,
(1)求
的值;
(2)若_________写出函数
的单调区间(不需证明单调性),并利用
的单调性解不等式
.
①函数
为奇函数;②函数
为偶函数,从这两个条件中任选一个填入横线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b785be7d800df095d215cfda2b2ad8c8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若_________写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2212fb0e316382c889cc409d3259afce.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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10 . 已知:底与腰之比为
的等腰三角形为黄金三角形.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/23/d906e69c-33ad-47c1-87a1-046eb54ce27b.png?resizew=337)
(1)如图1,
即为黄金三角形尺规作图.已知
,求
长为______,
为______.
(2)如图2,即为正五边形尺规作图.求证:五边形
(所作图形)即为正五边形.
(3)请用另一种方法尺规作图作出正五边形.简要叙述作图方法,无需作图.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029d393bb07b7140905b85f550519de4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/23/d906e69c-33ad-47c1-87a1-046eb54ce27b.png?resizew=337)
(1)如图1,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
(2)如图2,即为正五边形尺规作图.求证:五边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
(3)请用另一种方法尺规作图作出正五边形.简要叙述作图方法,无需作图.
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