1 . 设函数
,其中
(
),若
对任意实数
都成立,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c5da3de3a23b682a749872a485768e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a969c52310f3137fcb40b6e0eb376a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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2023-01-06更新
|
135次组卷
|
2卷引用:1.5正余弦函数的图象与性质课时作业 2020-2021学年高一数学北师大版(2019)必修第二册
名校
2 . 已知
是奇函数,当
时,
,且
,则实数
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8de0514c32858feef9a224111423491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06f542520ba0291df95622b84c697ef9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
3 . 已知
,若
在
上无极值点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9bf9929ece4e4b96149965f4fae0165.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d7daec19c34f0493f95384876433de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46d58ae5f410639233e4fe9975c87685.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9bf9929ece4e4b96149965f4fae0165.png)
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4 . 关于x的函数
有以下命题:
①存在
,使得
是偶函数;
②对任意的
,
都不是奇函数;
③对任意的
,
都是以
为最小正周期的周期函数;
④若
对任意的实数x都成立.则
的最小值为
.
其中正确结论的序号为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4eb0fa17492d559d0ff564adc9f7c6.png)
①存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
②对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
③对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9fdc1f8ed0ae44b54a9a2a3aca2db4.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a5e82d1f08ef6738090945935bf7d29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f785147690f83dcee0a0bc6c327e75a.png)
其中正确结论的序号为
您最近一年使用:0次
21-22高一·全国·单元测试
5 . 已知α,β∈(0,2π)且α<β,若关于x的方程(x+sinα)(x+sinβ)+1=0有实数根,则代数式
=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26cea3109b14aa3f85a174a0b03debd.png)
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名校
解题方法
6 . 在平面直角坐标系
中,已知直线
与
轴,
轴分别交于
,
两点,点
在圆
上运动.若
恒为锐角,则实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f01cf3e63de3d8216f3596ea4b0626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45a8a837c11c07073da3ff751d70278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021-11-05更新
|
497次组卷
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3卷引用:河北省石家庄市二十七中2021-2022学年高二上学期第一次月考(10月)数学试题
7 . 已知
(
),
,且
在区间
内有最小值,无最大值,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9448bf1d6136b3a108e7ea60506ad39.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c5da3de3a23b682a749872a485768e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e83d5782f737d37aca7f120d007e0018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3697c286ea301d21ff0dc4305d935883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9448bf1d6136b3a108e7ea60506ad39.png)
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解题方法
8 . 若函数
的最大值是4,最小值是
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb2f87452a6a5fe9dd73766b16d66bf.png)
__
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5b46873bb34cbe5cbbfe760c3793641.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb2f87452a6a5fe9dd73766b16d66bf.png)
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2021-08-12更新
|
253次组卷
|
2卷引用:湖北省武汉市部分重点中学2020-2021学年高一下学期期中联考数学试题
名校
解题方法
9 . 已知函数
,在
内的值域为
,则
的取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78aa3b703acc9bd304f5aaa5234ff69a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3aae9c8988f4a48db69cad3308942c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ee4e7d1b27423c5d74f3b7db91899b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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2021-08-12更新
|
538次组卷
|
5卷引用:辽宁省朝阳市建平县实验中学2020-2021学年高一下学期第二次月考数学试题
辽宁省朝阳市建平县实验中学2020-2021学年高一下学期第二次月考数学试题(已下线)5.4 三角函数的图象与性质(精练)-2021-2022学年高一数学一隅三反系列(人教A版2019必修第一册)江西省南昌县莲塘第一中学2021-2022学年高一4月期中线上质量检测数学试题(已下线)专题04 ω 的取值范围与最值问题(2)(已下线)专题09 三角函数的图象与性质(2)-期中期末考点大串讲
10 . 已
,
,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d45437cff3b967919958a84506a8a182.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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