名校
1 . 已知函数
在区间
有且仅有2个零点,则
的取值范围是_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1c108e4b023b60bd98445e97e17921.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/230b59c53740bcdd3ceca2cd9f860a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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2 . 已知向量
,函数
.
(1)求函数
在
上的单调递减区间;
(2)若
,且
,求
的值;
(3)将
图象上所有的点向左平移
个单位,然后再向上平移1个单位,最后使所有点的纵坐标变为原来的2倍,得到函数
的图象,当
时,方程
有一解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95dcf4a88de252d3b3385deb8741601c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc1525aee9019a25cf71dc6054ec1ce.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc1525aee9019a25cf71dc6054ec1ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c195698ac387fe53b3b1e0248a1fcc92.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ca1b47ff31f505df95eada1803d6052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ab23bb781ca1676f8ffd05fcc1e8080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ff0e5c78c04beea4e773185195da30.png)
(3)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd569dea5ce34578ebec285e816dbdc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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3 . 在
中,点
满足
,
,求
;
(2)若
是
的中点,直线
与
交于点
,且
,求
;
(3)在平面直角坐标系中,
为坐标原点,
,
,
,若函数
的最大值为3,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1ebb3888b74b713c1c89745008296d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0385c0b34d4653f18d017e128d687025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb4d750ebc742d242e61e4cac06838d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
(3)在平面直角坐标系中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7b2b9d836344c8897a734d52615cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55792713b30b69ba5aaf1b7676ecd7d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f44de693649d5e98fe513a6d13e32ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bb6e9314b4c2854d478a6ff47dabe83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4 . 函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a984343e999da48b906b36117c01e73c.png)
在
上是减函数,且在
上恰好取得一次最小值
,则
的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a984343e999da48b906b36117c01e73c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff46406cf7f298db70f81da8ea0ea4e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f1625acd8f964c438e10bc331419a91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bccd6a6e85bdf500218a3e75b31f3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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5 . 设函数
,若
对任意的实数x都成立,则
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89a2aa77183bb75eea40acf672ee979.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a969c52310f3137fcb40b6e0eb376a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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解题方法
6 . 函数
的最小值为
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7156f93a21b3627d0c6ebadf66a107f.png)
(1)当
时,求
;
(2)若
,求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/931e16e907d59aa410c32ac836a7d631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7156f93a21b3627d0c6ebadf66a107f.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db2838cec6d8fcb8d2de1c647ac2f12.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2981131e87ba5497ea6530d48d1d1eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eafb0a0700641b0be15ec5f2349c273f.png)
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2022-11-15更新
|
502次组卷
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4卷引用:山东省东营市利津县2021-2022学年高一下学期期中数学试题
山东省东营市利津县2021-2022学年高一下学期期中数学试题甘肃省酒泉市2022-2023学年高一上学期期末数学试题(已下线)5.4.2 正弦、余弦函数的单调性与最值(第2课时)(分层作业)-【上好课】(已下线)5.4.2 正弦、余弦函数的单调性与最值(第2课时)(导学案)-【上好课】
名校
7 . 记函数
的最小正周期为T,若
,且
是
图像的一个最高点,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c011b2fcfbd826b1433974cf2b35972.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24ad7ef0a5717e3e8c49ad7423baa78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c307feb37ad5d157da17121520ef6e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e668d7b66bc308ceaa6644a0e190a57.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-11-04更新
|
537次组卷
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2卷引用:山东省烟台市2022-2023学年高三上学期期中数学试题
名校
8 . 已知函数
的部分图像如图所示,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/4/16/2959598224089088/2962490070786048/STEM/be149d3b4278431ca22f87b9d69162a4.png?resizew=198)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a315980fc946abaae3e813a26a2a98de.png)
![](https://img.xkw.com/dksih/QBM/2022/4/16/2959598224089088/2962490070786048/STEM/be149d3b4278431ca22f87b9d69162a4.png?resizew=198)
A.![]() |
B.f(x)的最小正周期为2 |
C.将f(x)的图像向右平移1个单位长度,得到函数![]() |
D.若f(x)在区间[2,t]上的值域为[-1,![]() ![]() ![]() |
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2022-04-20更新
|
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5卷引用:山东省青岛市第十九中学2021-2022学年高一下学期期中考试数学试题
山东省青岛市第十九中学2021-2022学年高一下学期期中考试数学试题山东省青岛第十九中学2022-2023学年高一下学期4月月考数学试题山东省泰安市东平高级中学2022-2023学年高一下学期第一次质量检测数学试题福建省三明市2022届高三高中毕业班质量检测(D卷)数学试题(已下线)2022年高考考前最后一课-数学(正式版)-【考前预测篇1】热点试题精做
名校
9 . 已知向量
,且
.
(1)求
及
;
(2)若
的最小值为
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d2f3ef23ab23d50e2a6c193daa0ecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0fe4d834e8eaca89ceaf9c64cdabd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c250094127e2b3c878d68213b60407.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55dee3ac1df55ead3554b0a37faeef8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a22e82ffaf4d1ed342a8a0e7b76fd133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
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名校
10 . 若函数
的一个极大值点为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cca61da1126285ab0038f460c20f4ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46626b75bd7bc420bf32b66e3253b40b.png)
A.0 | B.![]() | C.![]() | D.![]() |
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2020-04-13更新
|
202次组卷
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2卷引用:山东省青岛市黄岛区2019-2020学年高三上学期期中数学试题