1 . 已知函数
的部分图象如图所示,且
,其中
、
是最高点与最低点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/19/f3993338-6b3f-4b07-8063-caba20c75263.png?resizew=159)
(1)求
的解析式;
(2)设
,求
的最大值及单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e717b5501b92c1c751ed847186ca0b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc2abe13e2d4176f55f71677bbbb6eb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/19/f3993338-6b3f-4b07-8063-caba20c75263.png?resizew=159)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2df7c6d0ab1a2301458979d83fbe3393.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
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2 . 在
中,
,则
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec54b07aabf7b3616d604b7d964823b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9e460c144f7a2141d2df0308b125f2.png)
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3 . 已知函数
的最小正周期为
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829179b805de1ef4b2aa98b104356fde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
A.![]() |
B.“![]() ![]() |
C.![]() ![]() |
D.“![]() ![]() |
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名校
解题方法
4 . 已知
的内角
所对的边分别为
,
,
,且
,
,则将
以
为旋转轴旋转一周所得到的几何体的体积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.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/645234e8ed43709a55ffe799cc39991c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6d75a838ebbe4ecb373ab5b92222883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-07-14更新
|
289次组卷
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2卷引用:河北省张家口市2021-2022学年高一下学期期末数学试题
名校
解题方法
5 . 已知
为锐角,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f587e2ebb4afd276dbd6bfefe16bcff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
A.![]() | B.![]() | C.2 | D.3 |
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2022-07-14更新
|
606次组卷
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3卷引用:河北省张家口市2021-2022学年高一下学期期末数学试题
河北省张家口市2021-2022学年高一下学期期末数学试题辽宁省朝阳市建平县实验中学2022-2023学年高二上学期第一次月考数学试题(已下线)期末专题01 三角函数5.4-5.7小题综合-【备战期末必刷真题】
解题方法
6 . 函数
的图象按以下次序变换:①每个点的横坐标变为原来的2倍;②图象向右平移
个单位长度;③每个点的纵坐标变为原来的3倍.得到
的图象,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cc53049096a1e5c4f9e1140a3786f8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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2022-07-06更新
|
225次组卷
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3卷引用:河北省张家口部分学校金科大联考2021-2022学年高二下学期7月质量检测数学试题
7 . 已知在
中,
为
上一点.
(1)若
且
为
的中点,求
;
(2)若
为
的平分线,当
取最大值时,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb044eede73584df43f7db83ef9bd2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3acf551f38311eccdcc325c0d283473.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93d2de029b113f92b8e4a6ec38dd3788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2022-07-05更新
|
188次组卷
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3卷引用:河北省张家口部分学校金科大联考2021-2022学年高二下学期7月质量检测数学试题
名校
解题方法
8 . 在△ABC中,角A,B,C所对的边分别为a,b,c,
.
(1)求B;
(2)若
,求△ABC的面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c8c4702389edb63ed7684c77e1e42d7.png)
(1)求B;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742b2684d00be50a66e01c9acb6b51f.png)
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2022-06-05更新
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2卷引用:河北省张家口市张北县第一中学2021-2022学年高一下学期6月月考数学试题
9 . 在①
;②
;③
这三个条件中任选一个,
补充在下面问题中.
问题:在
中,内角
的对边分别为
,_________,
,点
是线段
上一点.
(1)若
,求
的值;
(2)若
,且
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cafc4f9b687becaf426b8f8128fe476b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ec3f5447fff4d15c75bb3480f68bdc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e8c7a557c50b652dcd76a0b13ea3ce6.png)
补充在下面问题中.
问题:在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe29c42302504e7fd8577dbc7d130ac7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5642f6928fe267911b9cdca201eff3f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8915a3686bd9b0e04223907bf56e89ba.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e73c8c1d2ba6b29b301380a45dfbcdd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6166b9a5437671bcba31e17c375eb39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2022-05-23更新
|
770次组卷
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4卷引用:河北省张家口市第一中学2023届高三上学期期中数学试题
名校
10 . 已知函数
图象上所有点的横坐标伸长到原来的2倍,得到
的图象,
的部分图象如图所示,其中B为极大值点,若
,则
等于( )
![](https://img.xkw.com/dksih/QBM/2022/5/17/2981274494746624/2982638490943488/STEM/8341e495-e256-4e55-b3ff-519e12419349.png?resizew=226)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb7449741abec410b7556e6ec6489e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f962932817e7a1d622e0608a4484af2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://img.xkw.com/dksih/QBM/2022/5/17/2981274494746624/2982638490943488/STEM/8341e495-e256-4e55-b3ff-519e12419349.png?resizew=226)
A.![]() | B.![]() | C.![]() | D.![]() |
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