名校
解题方法
1 . 已知a,b,c为锐角
的内角A,B,C的对边,满足
.
(1)证明
为等腰三角形;
(2)若
的外接圆面积为
,求
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8afa382ff84d3ec616bcb6475165e802.png)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb424f99a4afc67a39a6b116ec033e5e.png)
您最近一年使用:0次
解题方法
2 . 若函数
和
的图象均连续不断,
和
均在任意的区间上不恒为0,
的定义域为
,
的定义域为
,存在非空区间
,满足:
,均有
,则称区间A为
和
的“
区间”
(1)写出
和
在
上的一个“
区间”,并说明理由;
(2)若
,且
在区间
上单调递增,
是
和
的“
区间”,证明:
在区间
上存在零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1ac49b4139636fb1809fe970b23a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1a0fd1ad044a9ecfcba672779bd678.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cd4adaf169a82c0ec20b1d71eea8b95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd170c506a8ce70f550f5751ae016ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/959e5239774a243ae38d6b95dbd82ca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/440b2e5cd4b3e07347c6135b36c699cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b8f1285c681b78d07c384040e92ef52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1613d377a07850c72cbec354b7a3000f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b485c0cb64ebe3c69c3b1747b387a9d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf87d9d48c3de0a5e9f1a70e51a0bef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
您最近一年使用:0次
解题方法
3 . 已知函数
.
(1)判断并证明
在区间
上的单调性;
(2)设
,试比较
的大小并用“
”将它们连接起来.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ded0f35ffd1c8cd9ab638a921e044d8.png)
(1)判断并证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ead3fdcb8fe8f5eb3dbe7d96cabc28b.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37c8c36b6d4e87e1322dec2bda085394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d10449bc77d692a7270e0f20a68cdf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
您最近一年使用:0次
4 . 定义运算:
,函数
的最小正周期为
.
(1)求
的值;
(2)求
的单调递减区间;
(3)将函数
的图像向左平移
个单位长度,再向下平移
个单位长度后得到函数
的图像,证明;存在无穷多个整数
,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9fec025453bac0d34d5e9bdf61a6755.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b0478fdcdadb1a74f329734ed2bd7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)将函数
![](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/04ddf2ae04265e2cbf674ab40bba45c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a8deebf5815d7f96370e32365ddf21.png)
您最近一年使用:0次
5 . 已知函数
.
(1)若
的最小正周期为
,求
的单调递增区间;
(2)若
在
上恒成立,求实数
的取值范围;
(3)若
,
,证明:存在无穷多个互不相同的正整数
,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5786efcb8774aa1e6fc5f953f15890ce.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f10959f09fd10b1f93155538eba94b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95a1d9a86dac105a6136ab2452b35b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dcee772e6187ac31d7f8d69b0487000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d0669f31ebc6a613e40054ca0957461.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec1e9fcd20b120cd6790352c867f0cca.png)
您最近一年使用:0次
名校
解题方法
6 . 在
中,角
,
,
的对边分别为
,
,
.
,
均为锐角,且满足
.
(1)证明:
是直角三角形;
(2)若
面积为
,求
的周长的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a848e6af9181dd6557ac1cd604f7e3c.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2021-10-08更新
|
1331次组卷
|
4卷引用:2021年全国高考冲刺压轴卷(四)理科数学试题
2021年全国高考冲刺压轴卷(四)理科数学试题西藏拉萨那曲高级中学2021-2022学年高二上学期期中考试数学试题广西师范大学附属外国语学校2022届高三5月适应性模拟测试数学试题(已下线)拓展四:三角形周长(定值,最值,范围)问题 (精讲)(2) -【精讲精练】2022-2023学年高一数学下学期同步精讲精练(人教A版2019必修第二册)
7 . 如图,函数
的图像过点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/26f44eb2-78ef-46c1-ae8c-af2b7c17a4d6.png?resizew=269)
(1)求证:
,并写出
的解析式;
(2)指出函数
的单调增区间;
(3)解方程
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb99c6441405726bd58734360911eaeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/26f44eb2-78ef-46c1-ae8c-af2b7c17a4d6.png?resizew=269)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c782473400ca663779f6fe453a1c6e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)指出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)解方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/776110dbd7aa019e43ec15964b9f8e4c.png)
您最近一年使用:0次
名校
8 . 已知向量
,向量
,函数
.
(1)求函数
在区间
上的最大值和最小值以及取得最值时
的值;
(2)求证:存在大于
的正实数
,使得不等式
在区间
有解.(其中
为自然对数的底数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a056a0b954cf727a5b2609991dbd9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d12b7a45d40d05404d2a7d1de923ab70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d0f3da1dc3e7b03d850541b6472860.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c9aeed3c8c5a04e48d011c607f9142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)求证:存在大于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5028b890ccdb0cf10ebe182e987585d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/250efc52967a2d57ef380bd28db3cbd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
您最近一年使用:0次
9 . 设定义域为R的函数
(其中
意指
的正弦值) .
(1)请指出该函数的零点、最大(小)值;
(2)类比“五点作图法”作出该函数在区间
上的大致图像;
(3)请指出该函数的奇偶性、单调区间和周期性(不必证明).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d99812fd96345de72e593c18adf44d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0698ab0f05ed4290e03391e050f2579a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0a89e3c30f6e4d4c5db4378b05d987.png)
(1)请指出该函数的零点、最大(小)值;
(2)类比“五点作图法”作出该函数在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcf92e06f54812aadaf5a624058d17f8.png)
(3)请指出该函数的奇偶性、单调区间和周期性(不必证明).
您最近一年使用:0次
2021-03-25更新
|
114次组卷
|
4卷引用:沪教版(2020) 必修第二册 领航者 期中测试
沪教版(2020) 必修第二册 领航者 期中测试沪教版(2020) 必修第二册 领航者 一课一练 期中测试(已下线)第04讲 三角函数的图象和性质(考点讲解+分层训练)-2021-2022学年高一数学考点专项训练(人教A版2019必修第一册)沪教版(2020) 必修第二册 同步跟踪练习 第7章 7.1 正弦函数的图像与性质 2 正弦函数的性质
名校
解题方法
10 . 已知函数
.
(1)定义
的导函数为
,
的导函数为
,
,以此类推,若
,求函数
的单调区间;
(2)若
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f16b7aaa90d39d2d679ea9ceae1d92d.png)
(1)定义
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a8704db42f4fdbe030262aaf8ccb4f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a8704db42f4fdbe030262aaf8ccb4f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6e4bb1ee08279e99e8b7c172132287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7afd2535d1157caf9d1f873aeecfe62d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a124a1675bff37079941b93cfe308257.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
您最近一年使用:0次
2021-03-05更新
|
265次组卷
|
2卷引用:河北省衡水第一中学2021届全国高三第二次联合考试(1)文科数学试题