解题方法
1 . 如图,
分别是等腰梯形
的边
上的动点,
,其中
为定值,
,设
,其中
.
,求出
的表达式;
(2)证明:
的余弦值与
的取值无关;
(3)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ced9844fe2e052c70486af0740afa63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/596d41b6556f383445536d1c534ac182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1f07948e9258b482a2164ac871f90f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a18fec3e4a4fbc7b3e0e037ce650023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d91513d2e546a5a0b5fd42379db8df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94e72cf7374a65ced433b6fa113ef57d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e2be3e9225c71609248299caa49432.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192c2f1059f6e05d44df048f5fdca04b.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7023ec0f513c7d0ef86859a5ede54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db625151987f893816de66b15d9e699.png)
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2 .
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccb543b5827e9bd9ea8b6de52964fb96.png)
(1)当
=1时,求
的最大值,并求此时
的取值.
(2)若
有4个零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/873b11d898c54bbb81b3bd3a312afb97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccb543b5827e9bd9ea8b6de52964fb96.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-02-25更新
|
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4卷引用:湖北省荆州市沙市中学2022-2023学年高一下学期2月月考数学试题
名校
3 . 已知
,
,函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae9f908aabcd9d9c46a0ecdfd1d6c12.png)
(1)求
的周期和单调递减区间;
(2)设
为常数,若
在区间
上是增函数,求
的取值范围;
(3)设
定义域为
,若对任意
,
,不等式
恒成立,求实数
的取值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dbb45d951aa4c64d07ea0e9394f2df5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1dfdb520f2dd637ccb5606d4695823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dae9f908aabcd9d9c46a0ecdfd1d6c12.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e665ca2220e4b27b78a173ff756e1eda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4607e9f81a317703cf52ef9dfe685c8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce53b7483eef4f0fb3334107acc4e1de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afbd17006e2625ff6748f6d098ea6573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bf60c5e8996d138198fe74f30ce520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/841a7b00bf7477dff488ec7bbe9d8ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-07-15更新
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7卷引用:贵州省遵义市2021-2022学年高一下学期期末质量监测数学试题
贵州省遵义市2021-2022学年高一下学期期末质量监测数学试题贵州省遵义市2021-2022学年高一下学期期末质量监测数学试题江西省赣州市赣县第三中学2022-2023学年高一上学期10月月考数学(理)试题四川省仁寿第一中学校南校区2022-2023学年高一下学期期中考试数学试题 甘肃省白银市靖远县第四中学2022-2023学年高一下学期6月月考数学试题(已下线)高一下学期期末真题精选(压轴60题20个考点专练)-【满分全攻略】2022-2023学年高一数学下学期核心考点+重难点讲练与测试(人教A版2019必修第二册)(已下线)上海市高一下学期期末真题必刷04-期末考点大串讲(沪教版2020必修二)
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4 . 已知函数
.
(1)将函数形式化简为
的形式,写出其振幅、初相与最小正周期;
(2)求函数
的最小值与此时所有
的取值;
(3)将函数
的图像向右移动
个单位,再将所得图像上各点的横坐标缩短到原来的
倍得到
的图像,如果
在区间
上至少有100个最大值,那么求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aad082d1e51ea7a3525bfdadfac00ef.png)
(1)将函数形式化简为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d6a3c1d4d1969bf68c9c29ada71f9e8.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c70e1a88ea4f561e3350e32089886aa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-03-21更新
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3卷引用:上海市建平中学2021-2022学年高一下学期3月月考数学试题
上海市建平中学2021-2022学年高一下学期3月月考数学试题上海市行知中学2022-2023学年高一下学期期中数学试题(已下线)第30讲 三角函数解答题7种常见题型总结(2)-【同步题型讲义】(人教A版2019必修第一册)
名校
解题方法
5 . 已知函数
.
(1)求不等式
的解集;
(2)
,将
的图象向右平移
个单位后得到函数
.若对任意的
,都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcaf2bf2e03dd6d33e03b69c5a318b90.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/195a523f1aa349541bb5b846bcc594dd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc5c3594ca8db401fbfdc7ddb57b13c.png)
![](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/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667466e8b8b971a8ea50cd080501577e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a777674bdd16996988b6ba37de5c6142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-05-08更新
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2卷引用:广东省河源市部分学校2023-2024学年高一下学期5月期中联考数学试题
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6 . 函数
,若
的图象向左平移
个单位得到
.
(1)求不等式
的解集;
(2)若函数
的最大值为9,求
的值;
(3)若
,方程
在
内有一个解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab4cfdce139fe199eb133faa93998607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028517e8bebe634441e0a5c79828e88a.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d421342981267087abf55d6f071eb89.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2542c1700f825ce2ffe1084632558c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eacc1a0b6b949a2e17aa335c2fe8a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f777ad530bb715ff0a262073cb2fef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f93f92a0569b6d5564816069a9ae023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
7 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若方程
只有一个解,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4194bed79a863407d9355b1f9c477c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddea382d8bece5514a9cbd6a225667e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881cc36bf316d72c99b079a491661403.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0105b95730592d199e9055a4fc73dbf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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8 . 定义:设不等式
的解集为A,若A中只有唯一整数,则称A为“和谐解集”.若关于x的不等式
在
上存在“和谐解集”,则实数m的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/918b8598c27cb0eb53cae7de545a05a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbfe8e7fb253685e0e50bae0c5482314.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-05-26更新
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5卷引用:河南省部分学校2022届高三下学期适应性考试文科数学试题
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9 . 已知函数
是常数.
(1)当
时,求函数
的值域;
(2)当
时,求方程
的解集;
(3)若函数
在区间
上有零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c6f819f0b5aaa03198a8902d6d6a8d2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccefc9e2b317b368efcaa63a86d191c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/217a7df60635c0e378fea8177861b1d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2018-01-07更新
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2卷引用:江苏省宿迁市沭阳县修远中学2017-2018学年高一上学期第二次月考数学试题