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1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67c3ad6bbf0f6241fab7042124594db5.png)
,满足
,且对任意
,都有
,当
取最小值时,则下列正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67c3ad6bbf0f6241fab7042124594db5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3731e4fe7dbd8899acb023f8647b71af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/788fa0020faf7d67087468d4047f14d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e0d47987b3481351beef90f857096a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() ![]() |
B.![]() ![]() ![]() |
C.将![]() ![]() ![]() |
D.![]() ![]() |
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解题方法
2 . 已知函数
.
(1)求函数
的最小正周期:
(2)在下列两个条件中,选择一个作为已知,使得实数
的值唯一确定,并求函数
在
上的最小值.
条件①:
的最大值为1;
条件②:
的一个对称中心为
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77b9816e229281f8fe17b6d848df179.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在下列两个条件中,选择一个作为已知,使得实数
![](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/44d51992c05a557cf6058664f1f8961e.png)
条件①:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
条件②:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358c8c0e7bc2f31f50d9aab6b2f84f5b.png)
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3 . 已知
,关丁该函数有下列四个说法,正确的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/525cb9f09708fd732fdc5da71009406e.png)
A.![]() |
B.当![]() ![]() ![]() |
C.![]() ![]() |
D.![]() ![]() ![]() |
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4 . 如图,在直角坐标系
中,作射线
,
分别交单位圆于点
,
,且
在第一象限,
在第二象限,且
.记
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/24/f11f2a53-63e7-4d82-a9d6-5d56086aaf9c.png?resizew=176)
(1)若
,求
;
(2)分别过
,
作
轴的垂线,垂足依次为
,
,求梯形
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc790cfaa59a808c25a7edb95dc29fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de77ee0b176035fd3a89edc2ad957a77.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/24/f11f2a53-63e7-4d82-a9d6-5d56086aaf9c.png?resizew=176)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e92903b4ad4fc018c9f7d0309ed20403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
(2)分别过
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520f8abda6a85e7ef6f281fc2df853fa.png)
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5 . 已知函数
,
.
(1)求
的最小正周期及单调减区间;
(2)求
在闭区间
上的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e68b9d43fc3eff0f2d6e7c89bde7d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f8a8cca938387814cbdb2a17c7575f.png)
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6 . 已知函数
.
(1)求函数
的最小正周期和单调递增区间;
(2)当
时,求
的最大值和最小值以及取到最大、最小值时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cacb5f9a365ec6fbfc83c38ad6affb28.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05c71530294b40b7e295b268cd0bab6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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7 . 已知函数
的最小正周期为
,且
关于
对称.
(1)求函数
的解析式,并求其对称中心;
(2)若存在
,使得
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179f0d7b5450cd3078a6d5213cd40056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8973254e0eeb29a0add0e4677ce5337b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dead8a612c14639ba205333ccf1fa8dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-12-17更新
|
1265次组卷
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3卷引用:浙江省温州市第五十一中2023-2024学年高一上学期12月月考数学试题
浙江省温州市第五十一中2023-2024学年高一上学期12月月考数学试题河北省唐山市2023-2024学年高一上学期期末模拟数学试题(已下线)专题训练:三角函数综合应用大题30题-【题型分类归纳】(人教A版2019必修第一册)
名校
8 . 已知函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4e9ada353cecb1bf39bd94a907c183.png)
A.![]() |
B.![]() ![]() |
C.![]() |
D.当![]() ![]() |
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2023-11-26更新
|
965次组卷
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5卷引用:浙江省温州市第五十一中2023-2024学年高一上学期12月月考数学试题
名校
解题方法
9 . 已知
,
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada5e0f6acc0871207e3e4f28988b129.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f763effa7037b46afde541d291698976.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831ec170b82f516a3f6d823fc32a02eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8b6e025e19f3340a781be29ce14d37d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-10-16更新
|
787次组卷
|
5卷引用:浙江省海宁市高级中学2023-2024学年高一上学期12月阶段性测试数学试题
浙江省海宁市高级中学2023-2024学年高一上学期12月阶段性测试数学试题(已下线)专题12三角函数压轴题-【常考压轴题】广东省深圳市人大附中深圳学校2024届高三上学期9月月考数学试题新疆维吾尔自治区阿克苏地库车市第二中学2023-2024学年高二上学期期中数学试题(已下线)微考点3-1 新高考中三角函数的图像与性质应用中的九大核心考点-2
解题方法
10 .
.
(1)求
;
(2)将函数
化为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e529ccd3f1f64a1c1c26fa01c4ea9d7a.png)
的形式,写出其最小正周期并求函数
在区间
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36f9a7e2e0e3dc183a734927370c5340.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efbc16bd7b2b9ad1372cddc250f7dbec.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e529ccd3f1f64a1c1c26fa01c4ea9d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f8aec56953cc9b8c7435556f5a1847e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ba7039324a6d810f4d5603d4edeb70e.png)
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