解题方法
1 . 设
的内角
、
、
的对边分别是
,
,
,
,且
为钝角.
(1)证明:
;
(2)求
的取值范围.
![](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/c7547e9ba4cc2787d8f9d59ecf1eb202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfd2d90ed8b5f265bb5b0a8c84b4b743.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d218a405fae9905116d6587cb9396b.png)
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2 . 设
,函数
的图像是由函数
的图像经如下变换得到:先将
图像上所有点的纵坐标伸长到原来的
倍(横坐标不变),再将所得到的图像向右平移
个单位长度.
(1)求函数
的解析式,并求其图像的对称轴方程;
(2)已知关于
的方程
在
内有两个不同的解
、
,
①求实数
的取值范围;
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e663a09cdcde628b5633a6ab07dd55b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)已知关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0112b805a6f654552c73faa57563ac8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24192cace1d2a643fc3a42a5b7ac273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
①求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07e228c185ab887fbbc46b4e06cb13e1.png)
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解题方法
3 . 已知
三个内角
、
、
的对边分别为
、
、
.
(1)若
、
为锐角三角形的两个内角,求证
;
(2)若
、
、
的倒数成等差数列,求证
.
![](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)
(1)若
![](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/85b48895daa87c296d961bfd0d4fd386.png)
(2)若
![](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/dc74ad5dbb6029f4bd4ea0d52f576945.png)
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名校
4 . 对于定义域分别是
,
的函数
,
规定:函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24b59a616211f68934c64002449d9b63.png)
(I)若函数
,写出函数
的解析式并求函数
值域;
(II)若
,其中
是常数,且
,请设计一个定义域为
的函数
及一个
的值,使得
,并予以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b5886cf72ed5a1073263eb9ff485c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48101d1755703877e99969012ddb4448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf5beca5f1a475dbf003bb2e27d51dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24b59a616211f68934c64002449d9b63.png)
(I)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6f83c8ab71cd4342a1381593a7bf09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2598c9ca2183c4b0b8c1ac2ef979d712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2598c9ca2183c4b0b8c1ac2ef979d712.png)
(II)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424a743a9d5c65ec8976c5c041912d07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/941647c1647511a05d56a58f0a21472d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1801eb64c822b33cfff1051cc8c5c96d.png)
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5 . 设函数
,
,其中
.
(1)当
时,求函数
的值域;
(2)记
的最大值为M,
①求M;
②求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06d52b757aaacf1d1c98b471e3dfbacf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/221abd7e6c657fa6c31066d2b5178e59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f60503db0ff6aa16adb829f65edd2ba4.png)
①求M;
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5a539028b40250ec60d83710b171dd.png)
您最近一年使用:0次
2021-01-18更新
|
1780次组卷
|
5卷引用:四川省内江市威远中学2020-2021学年高一下学期期中考试数学(理)试题
四川省内江市威远中学2020-2021学年高一下学期期中考试数学(理)试题浙江省宁波市镇海中学2020-2021学年高一上学期期末数学试题四川省成都市石室中学2020-2021学年高一下学期4月月考数学试题浙江省温州市温州中学2023-2024学年高一上学期阶段性测试(12月月考)数学试题(已下线)第七章 三角函数(压轴题专练)-单元速记·巧练(沪教版2020必修第二册)
名校
解题方法
6 . 在三棱柱
中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01d3c678487171bdd647403a2b56a01c.png)
点
为棱
的中点,点
是线段
上的一动点,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb008257b3266ecb9fe74788a245cdb8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/13/9ce95078-8927-4e78-a643-d11239cae652.png?resizew=208)
(1)证明:
;
(2)求平面
与平面
所成的二面角的正弦值;
(3)设直线
与平面
、平面
、平面
所成角分别为
求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01d3c678487171bdd647403a2b56a01c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce8be010cdb9fe9bb2bdc097a04f8e1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb008257b3266ecb9fe74788a245cdb8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/13/9ce95078-8927-4e78-a643-d11239cae652.png?resizew=208)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88a40737954d2edc87e6046a1c80e904.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f96c673a2381f118ea2d3efc0bca1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e53b212640dadf751ef7f65a78a209.png)
(3)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b1ec05e3cec27677ded7b4aecaa62d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f96c673a2381f118ea2d3efc0bca1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b7b7793d29d66dfdd89e7a6564a35c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d473a184e98a5f60947009da07dbe8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a872b4a59655457dda0669c4461edc66.png)
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2021-06-22更新
|
1100次组卷
|
3卷引用:上海市松江二中2021-2022学年高二上学期期中数学试题
上海市松江二中2021-2022学年高二上学期期中数学试题四川省成都市第七中学2020-2021学年高一下学期6月阶段考试数学试题 (已下线)第08讲 二面角(核心考点讲与练)-2022-2023学年高二数学考试满分全攻略(沪教版2020必修第三册)
7 . 已知函数
.
(1)求函数
的定义域;
(2)求曲线
在点
处的切线方程;
(3)求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554abe4a9038c2113c0401e4654c570b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6faa9259567d80f5da69a5fc09e71658.png)
(3)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031ed5002755bcdd53c26fd7ff27fa09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2608a57caffde627dbf140ca22a2ff8a.png)
您最近一年使用:0次
2020-06-15更新
|
680次组卷
|
3卷引用:山西省运城市2022届高三上学期期中数学(理)试题
20-21高一·上海·假期作业
8 . 已知函数
,
.
(1)请指出函数
的奇偶性,并给予证明;
(2)当
时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf5354db6989b8249b20b65a298086a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
(1)请指出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
20-21高一·浙江·期末
解题方法
9 . 已知
为奇函数.
(1)求实数
的值;
(2)判断并用定义法证明函数
的单调性;
(3)若关于
的不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d4c93934ce43b89d78c701c8aaf69b0.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)判断并用定义法证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07aa493fb64f43e16e86ac81434334b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
解题方法
10 . 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
|
2091次组卷
|
12卷引用: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重庆市第一中学2020-2021学年高一上学期期末数学试题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)广东实验中学2023-2024学年高一上学期期末数学试题