名校
1 . 已知函数
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda318adf65c6b6fd45f651365f52346.png)
(1)求
的最大值
(2)写出
与
的大小关系,并给出证明
(3)试问
能否作为
三边长?若能,给出证明,并探究
的外接圆的半径是否为定值?若不能,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1044dcf4fba551e1b7fbfeb895ea08c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda318adf65c6b6fd45f651365f52346.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b692262286e03cc0536598789fab8699.png)
(2)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88fd5c1ef0fc722337a4984834829c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e7bb46b41cd3f1f9b5621c20bf7fe07.png)
(3)试问
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b799aaa36edd0d10fc38925ce2e55045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2024-06-12更新
|
157次组卷
|
2卷引用:江苏省江都中学、江苏省高邮中学、江苏省仪征中学2023-2024学年高一下学期5月联合测试数学试卷
名校
解题方法
2 . 在直四棱柱
中,所有棱长均为2,
,
为
的中点,点
在四边形
内(包括边界)运动,下列结论中正确的是_____ (填序号)
在线段
上运动时,四面体
的体积为定值
②若
面
,则
的最小值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
③若
的外心为M,则
为定值2
④若
,则点
的轨迹长度为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a46dc0bb5d8fa33583817e530a5d21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b54387f870ae37f7951b253665d64f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e539f26ed5e0b20ff7220559324869a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd91ef047f2591dc1406bc0e39934fe6.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea3bcade880af77158e0dc1a6af2980.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be61fee6829cb6e6fe17808c1a8fe197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4996e2ab0b3cdb7d3406e038e5a46c5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497ad8ec00e4751a797d755753c8e760.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e077661d6c2faacf4a12f6cfba099f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f785147690f83dcee0a0bc6c327e75a.png)
您最近一年使用:0次
2024-06-11更新
|
408次组卷
|
2卷引用:江苏省扬州市第一中学2023-2024学年高一下学期5月教学质量调研评估数学试题
名校
解题方法
3 . 费马点是在三角形中到三个顶点距离之和最小的点.具体位置取决于三角形的形状,如果三角形的三个内角均小于
,费马点是三角形内部对三边张角均为
的点;如果三角形有一个内角大于或等于
,费马点就是该内角所在的顶点.
已知△ABC中,角A,B,C所对的边分别为a,b,c,O为费马点.
(1)若
,
,
,求
的值;
(2)若
,
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
已知△ABC中,角A,B,C所对的边分别为a,b,c,O为费马点.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783d6adfa8fb1352679c5185258d842a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb5bac75f36bb1dc5c8190d4dbe681d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/569b5df7e2e4642091364efefe8dddf9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa1466856bf2570685d3629c1f813748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c2bd0a04afc05de0f6a86ada42411f2.png)
您最近一年使用:0次
2024-05-11更新
|
461次组卷
|
2卷引用:江苏省扬州市新华中学2023-2024学年高一下学期适应性练习数学试题
名校
4 . 平行四边形ABCD中,
,
,
.动点P满足
,
,下列选项中正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe88fb8bc8fe985cf2bb29003cc9111.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c3a1f1a37e69b2dc06bf0affd58f22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9545017eee79a71befee621b52c8cae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fc5c0f91783c8615bb3c8686a51b093.png)
A.![]() ![]() ![]() |
B.![]() ![]() ![]() |
C.![]() ![]() ![]() |
D.![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2024-04-29更新
|
461次组卷
|
4卷引用:江苏省邗江中学2023-2024学年高一下学期5月阶段性测试数学试题
名校
解题方法
5 . 已知正八边形
的边长为
,
是正八边形边上任意一点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d17d4a6cf11cda87b3dfafaecdec683f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.![]() ![]() ![]() |
B.![]() |
C.若函数![]() ![]() ![]() |
D.![]() |
您最近一年使用:0次
名校
6 . 已知函数
,其中
.
(1)若
,
求
的值;
(2)若
,函数
图像向右平移
个单位,得到函数
的图像,
是
的一个零点,若函数
在
(
,
且
)上恰好有4个零点,求
的最小值;
(3)令
,将函数为
的图像向左平移
个单位得到函数
,已知函数
的最大值为10,求满足条件的
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4d718b2532bbcc1a451173fd8f11149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cefd79f1543ad922a07051288eb3d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21e66b48a2053f6744333466f717769.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83f95e85ce6707ff4161cc675665c557.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9895bf4192f5c55c16f8270d53c49b13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbd8466b576ad34d6ef492599940f4b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8440725e1df5ca0990b572dd84127914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb7961cbe98aac6a5fdee94582c341b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef3fe9e3034549db8d8a11a0faf53c99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c49ca8562b98657ca9c499093f7233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0acd201e18913a45b5e3486a7e522fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b39c5fa9d4d51abd4059d191b863a5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77da1116afb6684b885d463eb69758ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe84f65c9c4345ae5ddcdafa89e7273.png)
您最近一年使用:0次
2024-04-23更新
|
289次组卷
|
5卷引用:江苏省扬州市新华中学2023-2024学年高一下学期5月月考数学试题
江苏省扬州市新华中学2023-2024学年高一下学期5月月考数学试题上海市嘉定区第一中学2023-2024学年高一下学期期中考试数学试卷(已下线)第四章 三角恒等变换(单元测试,新题型)-同步精品课堂(北师大版2019必修第二册)(已下线)专题06 期末解答压轴题-《期末真题分类汇编》(上海专用)(已下线)专题02 三角函数-期末考点大串讲(沪教版2020必修二)
名校
7 . 已知函数
.
(1)当
时,求
的值域;
(2)当
时,设
,求证:函数
有且只有一个零点;
(3)当
时,若实数
使得
对任意实数
恒成立,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dd9454d93ceba0aabe7fd49940bfe05.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd7126d6d76248996a222631cc9ea93c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/929d7dcd904be9aac64dfc5c68c3539e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7655d9321940385897c723a4f2136c72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa5e9b6589b0c44b61f17028394b444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b511bcbe94aa484c0a067891fbf7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90de59980f26e4456ff705ca6842400b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da8690b9a30328d99587ef690df5e704.png)
您最近一年使用:0次
名校
解题方法
8 . 如图,在边长为3的等边三角形
中,
且点
在以
的中点
为圆心,
为半径的半圆上,若
,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a81889370d45239939a36de53c4445d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95d146bdcc8ac0a256c12696e9b9826.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
名校
9 . 若
的角
所对边
,且满足
,则
的最大值为( )
![](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/5fd95a60e2fe536650186ee3ffa76934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a24a8f5e8fb89381f8add6549170345.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-04-18更新
|
939次组卷
|
3卷引用:江苏省扬州中学2023-2024学年高一下学期4月期中数学试题
名校
10 . 已知
为
的内心,
,且满足
,则
的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64476ffee8fd79c8ff6682dc504ce0a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb370f9f62b28ff9ea09da2d3934c9c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
您最近一年使用:0次
2024-04-18更新
|
553次组卷
|
3卷引用:江苏省扬州中学2023-2024学年高一下学期4月期中数学试题