解题方法
1 . 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
2 . 已知
为斜三角形.
(1)证明:
;
(2)若
为锐角三角形,
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8736c95bcc4e266c2cc558c1c149b41e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/925ccda7426be0f6d64ea83bda7bba41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031345f8b2b8c802b261f1146b1355fe.png)
您最近一年使用:0次
2022-10-29更新
|
871次组卷
|
11卷引用:江苏省扬州市宝应中学2023-2024学年高一凌志班上学期9月月度纠错数学试题
江苏省扬州市宝应中学2023-2024学年高一凌志班上学期9月月度纠错数学试题辽宁省丹东市2022-2023学年高三上学期总复习第一次阶段测试数学试题湖北省武汉市2022-2023学年高一上学期期末模拟数学试题(五)江苏省宿迁市第一中学2022-2023学年高一下学期3月阶段模拟数学试题(已下线)模块一 专题4 三角恒等变换3(北师大版)(已下线)模块三 专题7 大题分类练(三角恒等变换)基础夯实练(北师大版)(已下线)模块三 专题5 大题分类练(三角恒等变换)基础夯实练(苏教版)(已下线)模块一 专题2 三角恒等变换2(苏教版)(已下线)专题13 三角恒等变换压轴题-【常考压轴题】(已下线)专题10 几个三角恒等式-【寒假自学课】(苏教版2019)(已下线)5.5.2简单的三角恒等变换(第2课时)
名校
解题方法
3 . 设
是实数,
.
(1)若函数
为奇函数,求
的值;
(2)试证明:对于任意
,
在
上为单调函数;
(3)若函数
为奇函数,且不等式
对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a7b8c5f6d0a551044a08cbd35e9422.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)试证明:对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6aa72ed1e739de7f0011c1a1e4906e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2022-08-14更新
|
805次组卷
|
4卷引用:江苏省扬州中学2022-2023学年高三上学期开学考试数学试题
江苏省扬州中学2022-2023学年高三上学期开学考试数学试题河南宋基信阳实验中学2021-2022学年高三9月开学摸底考试数学(文)试题河南省濮阳市南乐县第一高级中学2022-2023学年高三上学期8月月考文科数学试题(已下线)期中考试模拟测试卷(范围:第一章~第三章) -【单元测试】2022-2023学年高一数学分层训练AB卷(北师大版2019必修第一册)
名校
4 . 已知函数
.
(1)求证:函数
在区间
上是单调增函数;
(2)若对
,
满足不等式
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d29ef9e604297108a169595cf78c81.png)
(1)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f6f7ea32b59cd8beeb2d6bb74632bf.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94c6352b95206705588fea93bd6eb741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae98dfbda5ad07f131640f08e55d52c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d0b8acc56741c53959836e2ef5c304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2022-03-27更新
|
495次组卷
|
2卷引用:江苏省扬州大学附属中学2021-2022学年高一上学期期中数学试题
5 . 已知函数
是奇函数.
(1)求实数a的值;
(2)判断
在定义域上的单调性并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25842d7f55379fad346388c54a80c5d9.png)
(1)求实数a的值;
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
解题方法
6 . (1)已知
,求
的最小值,并求取到最小值时
的值;
(2)设
且
,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752455799e49f846e2601304fec5d3b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b9173d6b4acd46aaecceed819d739f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131ac7eb1e911c9a40e84235bf3742ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8850308571ef5aead3a435bcad9a0ed.png)
您最近一年使用:0次
2022-03-30更新
|
567次组卷
|
4卷引用:江苏省扬州市江都区育才中学2022-2023学年高一上学期阶段测试数学试题
名校
7 . 已知函数
,
.
(1)若
,
,求
,
的最小值;
(2)若
恒成立,
①求证:
;
②若
,且
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda5ab0495110870938c761638ae6ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4455c34a5309521d086f81aeb5bd2238.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07cceb74798201d30a49adcc71dfee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e82c4003d20b36777f7aea584e3dd4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4955c5adc717b7f6f0b975e0724ff5.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50ac258ef199b8d5bea76b095301ba3.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d88b855ea21f5559e5c9f022fb6b0ec8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2022-03-29更新
|
345次组卷
|
2卷引用:江苏省扬州市第一中学2022-2023学年高一上学期期中数学试题
名校
解题方法
8 . 已知定义在区间
上的函数
为奇函数.
(1)求实数
的值;
(2)用定义法证明函数
在区间
上的单调性;
(3)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c81caa90bdecc3f77c0343bd1f4d7d8.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)用定义法证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
(3)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d06da5f9311195b66c3e8d1ecb90df3f.png)
您最近一年使用:0次
2021-11-22更新
|
364次组卷
|
8卷引用:江苏省扬州中学2019-2020学年高一上学期期中数学试题
名校
解题方法
9 . (1)已知a,b,x,
,且
,
,试比较
与
的大小.
(2)已知
,
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2519954ec2deabecd7e057886fa4023c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec8201ff29a2091d40eee10db6bbc1f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b21208364124b5c477b2ff8df1c2e8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ee8a678f431a14c7c6c1a6088d057c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46950cf924aff835a6aa4bf477c27b24.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca27cc54ca0332245f5167488daa3408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f666eada92511beab60540a7e201b769.png)
您最近一年使用:0次
2021-11-12更新
|
327次组卷
|
3卷引用:江苏省扬州市高邮市第一中学2023-2024学年高一上学期九月学情检测数学试题
名校
解题方法
10 . 已知函数
是奇函数.
(1)求实数a的值;
(2)当
时,
①判断
的单调性(不要求证明);
②对任意实数x,不等式
恒成立,求正整数m的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da0f54a590ba772a2cbee041f631423.png)
(1)求实数a的值;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
①判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
②对任意实数x,不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de28e189791b303cb91b1e0c99dad17.png)
您最近一年使用:0次
2022-01-13更新
|
1199次组卷
|
5卷引用:江苏省扬州中学2021-2022学年高一下学期开学考试数学试题
江苏省扬州中学2021-2022学年高一下学期开学考试数学试题河北省唐山市2021-2022学年高一上学期期末数学试题湖北省黄冈市红安县第一中学2021-2022学年高一下学期开学检测数学试题(已下线)第5章 三角函数-2021-2022学年高一数学单元过关卷(人教A版2019必修第一册)四川省泸州市龙马高中2022-2023学年高一下学期第一次月考数学试题