名校
解题方法
1 . 在锐角
中,内角
的对边分别是
,且
.
(1)求证:
;
(2)求
的取值范围.
![](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/59ea9730867a7e5623f023bf5424061d.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/759ee5f5ca252f6acce1aacea9d17fa6.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb67e12129782b9c98e52b799a24341.png)
您最近一年使用:0次
2024-04-10更新
|
1071次组卷
|
3卷引用:重庆市杨家坪中学2023-2024学年2023-2024学年高一下学期5月月考数学试题
名校
2 . 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)
您最近一年使用:0次
2024-04-07更新
|
735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
解题方法
3 . 如图,已知直线
,
是
,
之间的一定点并且点
到
,
的距离分别为
,
,
是直线
上一动点,作
,且使
与直线
交于点
.设
.
面积
关于角
的函数解析式
;
(2)画出上述函数的图象;并根据图象求
的最小值;
(3)证明函数
的图象关于
对称.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdb9d8425d73a68731f30e0c0e22260.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b53eab97158937f92039c1e133b0f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f285174fbf90a9742de57c1e53224cff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822ba132ca9dd0d4a050659aef3c9b26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c499d3ef329f85e59fd72dec6f453bbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fd7229922fbb3ce09dada883f74fbb1.png)
(2)画出上述函数的图象;并根据图象求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fd7229922fbb3ce09dada883f74fbb1.png)
(3)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fd7229922fbb3ce09dada883f74fbb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4120436d6ff0c58109473edc068257c3.png)
您最近一年使用:0次
名校
解题方法
4 . 已知定义在实数集
上的函数
满足
,且对任意
,
,恒有
.
(1)求
;
(2)求证:对任意
,
,恒有:
;
(3)是否存在实数
,使得不等式
对任意的
恒成立?若存在,求
的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f57457379efecec3a8f98377bc5c65d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c10cd566fe3673d7a87ded397e99de1a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce6155e181e21ce56ea658b70f8af17.png)
(2)求证:对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5a523e020e21797c0f83c2b6772588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2423c1d4197826b05e7e0499bd3153c.png)
(3)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b799503a438415d9c04cf00beea9659.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daac76dc6806917c5d76429d503aaed2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2023-01-14更新
|
610次组卷
|
2卷引用:重庆市第一中学校2022-2023学年高一上学期期末数学试题
20-21高一上·广东深圳·期末
名校
解题方法
5 . 已知函数
,其中
.
(1)若对任意实数
,恒有
,求
的取值范围;
(2)是否存在实数
,使得
且
?若存在,则求
的取值范围;若不存在,则加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85dd1fdd94a455cc227ca5e3f95a9c1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)若对任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7f2f958e2a93e7e6d3212d9d64de1a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ef2871799c6f5de8789d7b1ccf3cf58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b7927613fdabce1a99396a0e539872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7156a1acddc8e89c87c95a64d47d7c1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
您最近一年使用:0次
2022-02-27更新
|
1427次组卷
|
7卷引用:重庆市南开中学校2021-2022学年高一下学期第一次月考数学试题
名校
解题方法
6 . 已知函数
.
(1)求
的最小正周期;
(2)求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c5d3b765910169122b54c11fbaf502a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b0fd50ac74f1578fff87c2e18ffe80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17796db948012ea00f79954c0e389b0d.png)
您最近一年使用:0次
2021-03-26更新
|
179次组卷
|
2卷引用:重庆市巴蜀中学2021届高三下学期第一次诊断性测试数学试题
名校
解题方法
7 . 若函数
对定义域内的每一个值
,在其定义域内都存在
,使
成立,则称该函数为“圆满函数”.已知函数
;
(1)判断函数
是否为“圆满函数”,并说明理由;
(2)设
,证明:
有且只有一个零点
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662141666c8fe18e730dba1876e3f5a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/132fec6cceabfc0eb32ec8c22ea9d2f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9e669ed6bec8efe4d4d801496a6b6a3.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d3fa675f914fbc08e4e6a683d1e0fc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d89c01a4917f5730e60e20310e1f07da.png)
您最近一年使用:0次
2021-02-05更新
|
2092次组卷
|
12卷引用:重庆市第一中学2020-2021学年高一上学期期末数学试题
重庆市第一中学2020-2021学年高一上学期期末数学试题重庆市永川中学校2023-2024学年高一上学期期末复习数学试题(三)四川省达州市大竹县大竹中学2020-2021学年高一下学期5月月考数学试题河北省正定中学2020-2021学年高一下学期第一次月考数学试题福建省厦门第一中学2021-2022学年高一12月第二次月考数学试题内蒙古自治区阿拉善盟阿拉善盟第一中学2021-2022学年高一上学期期末数学试题江苏省无锡市天一中学2021-2022学年高一平行班上学期期末数学试题河北省石家庄市第二中学2022-2023学年高一上学期期末数学试题湖南省衡阳市第一中学2022-2023学年高一上学期期末考试数学试题广东省汕头市金山中学2022-2023学年高一下学期期中数学试题广东实验中学2023-2024学年高一上学期期末数学试题广东省汕头市潮阳黄图盛中学2023-2024学年高一下学期期中考试数学试卷
8 . 已知
中,内角
、
、
的对边分别为
、
、
,且
.
(Ⅰ)求证:
、
、
成等差数列;
(Ⅱ)求函数
取得最大值时角
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0ad7060a5591a0cc7d9e596ea76cb08.png)
(Ⅰ)求证:
![](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)
(Ⅱ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f3b026a73452f5c358e01b51adc3191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
您最近一年使用:0次
名校
解题方法
9 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18470da5048b671a55c78b63d0467b44.png)
(1)求函数
的单调区间;
(2)求证:
时,
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18470da5048b671a55c78b63d0467b44.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11c43d893376dd453ba31cf16bc20768.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eecf5c03e00e47645f289dbefdddd82a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52ec66823dae5c5fafc690a88c68b67b.png)
您最近一年使用:0次
2018-03-12更新
|
512次组卷
|
4卷引用:重庆一中2017-2018学年高一上学期期末考试数学试题