已知平面向量
,
,函数
.
(1)求
的单调增区间.
(2)在△ABC中,a,b,c分别是内角A,B,C所对的边,若
,
,求△ABC周长的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf34b947b50cdc0f535ffcbf9fd7aef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783897bb0520a3a2a380f807e08b9f48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/017fed73ba579435a22a29ef843c9124.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在△ABC中,a,b,c分别是内角A,B,C所对的边,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b9cb34c9c6b3c82efcbfb244c33b7bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
22-23高二下·浙江杭州·期中 查看更多[5]
浙江省杭州市第十四中学2022-2023学年高二下学期阶段性测试(期中)数学试题(已下线)【2023】【高二下】【期中考】【368】【高中数学】【马定超收集】四川省成都市简阳市阳安中学2022-2023学年高一下学期6月月考数学试题(已下线)高一下学期第一次月考模拟卷(新题型)-同步题型分类归纳讲与练(人教A版2019必修第二册)山东省菏泽市东明县第一中学2023-2024学年高一下学期4月月考数学试题
更新时间:2023-05-11 18:21:33
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【推荐1】在△ABC中,内角A、B、C所对的边分别为a、b、c,D为边BC上一点,若
.
(1)证明:
①AD平分∠BAC,
②
;
(2)若
,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f99793d2ff07f5c911b243f939d6000.png)
(1)证明:
①AD平分∠BAC,
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20f1a38cbdbd0ce41e25630dcac4d9df.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7113d6a79f144552a8315a6a6703d2b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4bd031359d977cd249725cb645368a2.png)
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【推荐2】已知函数
为偶函数,且
,其中
.
(1)求a,φ的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fdd84e554c69af255cc9b93af1a08cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9fe158b34ee9c6204b6e28b093fbed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f921f89cbd4c4c6fa397b77e62703fe.png)
(1)求a,φ的值;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179356de23d81d8132bfd0aac728b42f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/750890ea6f1caae0e293392ba83ca9cc.png)
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【推荐1】在△
中,
、
、
分别是角
、
、
的对边,向量
,
,
.
(1)求角
;
(2)若
,求
周长的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df96f429b7ab8d7758f6d7848df9eb51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1d3402a3c697ee4419c0a7ce98b9dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ee59964f020fc52b5ba66a3f5fcc3c.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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【推荐2】在
中,
分别为内角
的对边,且
.
(1)求角
的大小;
(2)若
,
为
的内心,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acee20a1d6871d4784d96e12fcee5143.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bc11dbe7cfe3cadb24847e9f93b049c.png)
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【推荐1】已知
.
(1)求函数
在
上的严格增区间;
(2)将函数
的图像向左平移
个单位,再向上平移1个单位,待到函数
的图像,若函数
的图像关于点
对称,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4854fd098d6d323b1f9ecccae19e765.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd65d7c5e979706d391163aee2c18cb2.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f93a232c88870d213a7b74a796a1ff4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
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【推荐2】已知函数
的图象两相邻对称轴之间的距离是
.
(1)求
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(2)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be41795f401fbd9c2237659aaa03dd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee6662c2309f499b50222db478a18094.png)
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【推荐3】已知
.
(1)求
的最小正周期及单调递减区间;
(2)求函数
在区间
上的最大值和相应的x值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77314f757493b8d45e32b6516d1fb769.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c9aeed3c8c5a04e48d011c607f9142.png)
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