名校
1 . 已知
为单位向量,向量
满足
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc64abe49847ade9b78678ba1f8e0e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/483293c6d238710ee1ef906e5a85087d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94d723baf90e91b4691a2dcdd8f2a53e.png)
A.9 | B.3 | C.![]() | D.10 |
您最近一年使用:0次
2 . 已知动点
的轨迹方程为
,其中
,则
的最小值为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ee82573986d4fa6a7ee1b5f397edae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7390d8560864f6127549e9e80c4798f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6ffc52238841c692ce274ce18af7e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f30d7bd0ad38075177574bfb7ca0df46.png)
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名校
解题方法
3 . 如图,在等腰梯形
中,
,
,点
为边
上靠近点
的六等分点,
为
中点.
表示
;
(2)设
为
中点,
是线段
(不含端点)上的动点,
交
于点
,若
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a68895db9b734487593646438653ccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b7ae2f931da35ad6cd16e2dec974f12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae54940f33b8714da5fe3b7546f8b3dc.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61197405c5bc077c5944d0243310b2e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40a14346c46472cf74b617fd26784b85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53351d85954737437000906554e8283.png)
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解题方法
4 . 环保生活,低碳出行,电动汽车正成为人们购车的热门选择.某型号电动汽车,在一段平坦的国道进行测试,国道限速.经多次测试得到,该汽车每小时耗电量
(单位:
)与速度
(单位:
)的下列数据:
0 | 10 | 40 | 60 | |
0 | 1325 | 4400 | 7200 |
为了描述国道上该汽车每小时耗电量与速度的关系,现有以下三种函数模型供选择:,
,
.
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2580bb2f3ca0015aca06cf7730fcbe4c.png)
(2)现有一辆同型号汽车从
![](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/dc598e0a0ebea206db23c06ac75fb3c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870cd01b72fc36199688bc1be099a86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7759b26a9a0741248bf2bb87ebd01dcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc81b52d38d0a8e500860d4ca74415e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c6b1a808a8fb5b9834ee114592dca2e.png)
您最近一年使用:0次
2024-03-21更新
|
152次组卷
|
2卷引用:湖北省荆门市2023-2024学年高一上学期1月期末学业水平检测数学试题
5 . 已知函数
为奇函数,
.
(1)求实数
;
(2)求函数
在区间
上的最小值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e213bac8edbce5af1b9962145f122b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49578d43911f06205f83ace3cc5a2b44.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9210e75c35fb455d0446eb7ddba7d79c.png)
您最近一年使用:0次
名校
解题方法
6 . 在正方形ABCD中,已知
,点P在射线CD上运动,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59880e470359d8e9faf6ae5ce155cf2a.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-06-09更新
|
277次组卷
|
2卷引用:湖北省新高考协作体2022-2023学年高一下学期5月联考数学试题
名校
解题方法
7 . 某地政府为了解决停车难问题,在一块空地上规划建设一个四边形停车场.如图,经过测量
,中间
是一条道路,其面积忽略不计.
(1)求
的值;
(2)
的面积分别记为
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86afd107eea859faf6d0ca74c78782f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/12/ae91078d-0296-44e0-bc85-ac8fbe205cb9.png?resizew=163)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71ea32be0142a0f1922057bd143fca45.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e245ec43436a8e516d5a7a62a1c505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3637753af5ce86be9c23a9beb6b5067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be89b91f05f281190209b1e876299d57.png)
您最近一年使用:0次
2023-06-08更新
|
434次组卷
|
3卷引用:湖北省高中名校联盟2022-2023学年高一下学期5月联合测评数学试题
8 . 已知直角三角形
中,直角边
,点
是边
上一定点,
,点
是斜边
上一动点,
,则
面积的最大值为________ ;线段
长度的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.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/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/945efbd2a73b8f37b115b56f4f3ea937.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9524e3810e06dc781285f1289e75d653.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
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解题方法
9 . 如图,已知△ABC为等边三角形,点G是△ABC内一点.过点G的直线l与线段AB交于点D,与线段AC交于点E.设
,
,且
,
.
,求
;
(2)若点G是△ABC的重心,设△ADE的周长为
,△ABC的周长为
.
(i)求
的值;
(ii)设
,记
,求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63b83647557c93d7f7e9ceee524601a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2694abaac969cf6ce51a009a679fe300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78fbecca12ee62538020483fd55a2109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4724421cffc6f0a2f8db1103b2cc587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28eecb75e4ae9cf9b70448ea447ed397.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06dc1d253e6230fba911bdf333088359.png)
(2)若点G是△ABC的重心,设△ADE的周长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7936359df4c926b72b48c6fdae55f12d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b76f79be89b8c6227b68eded6b675546.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587b693b82241eb9c32cdbb96c209f33.png)
(ii)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89a911a7aae28cca3434079307fb5ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d5cc439e1e4a8922491a7bbad68494.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2709ca478fb15ea08e8aa55328eae8e6.png)
您最近一年使用:0次
2023-04-26更新
|
907次组卷
|
4卷引用:湖北省武汉市华中师范大学第一附属中学2022-2023学年高一下学期期中数学试题
湖北省武汉市华中师范大学第一附属中学2022-2023学年高一下学期期中数学试题(已下线)专题1 立体几何与解析几何的结合江苏省连云港市灌南县两灌联考2023-2024学年高一下学期3月月考数学试题(已下线)期中测试卷02-《重难点题型·高分突破》(人教A版2019必修第二册)
名校
解题方法
10 . 已知函数
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d57b7c8a544aefb38c411ba965591513.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
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2023-04-14更新
|
2241次组卷
|
5卷引用:湖北省鄂东南省级示范教学改革联盟学校2022-2023学年高一下学期期中联考数学试题
湖北省鄂东南省级示范教学改革联盟学校2022-2023学年高一下学期期中联考数学试题湖南省长沙市明德中学2022-2023学年高一下学期5月月考数学试题第四章 指数函数与对数函数 (单元测)(已下线)考点巩固卷05 指对幂函数(十一大考点)(已下线)模块三 专题1《对数函数求参数(或者范围)问题》(人教A)