解题方法
1 . 已知
中,
分别为角
对应的边,且
,
,
.
(1)求
的面积最大值;
(2)设
,求
边上的高.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d90d7f054e8f0346479e1999622f11cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/516983449108347c9bbf5dd2a72ab3dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baf623a808eaaef1acef2bd44d92d34a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d4d887c5993af5d4ada6e0fd57eec1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fecc0e0eca21ea38de64fbdb5716ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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解题方法
2 . 已知角
的顶点与原点重合,始边与
轴非负半轴重合,角
的终边经过点
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cceff0e7d103475c3ba9a2712f373185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb1bae8cfac08f014342c8448969333f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-12-31更新
|
1477次组卷
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4卷引用:广东省珠海市2024年春季高考模拟考试数学试卷
广东省珠海市2024年春季高考模拟考试数学试卷福建省福州市长乐第一中学2024届高三上学期1月考试数学试题黑龙江省哈尔滨市德强高级中学2023-2024学年高一下学期开学验收考试数学试题(已下线)4.2两角和与差的三角函数公式(2)-【帮课堂】(北师大版2019必修第二册)
解题方法
3 . 设点P是以原点为圆心的单位圆上的动点,它从初始位置
出发,沿单位圆按逆时针方向转动角
后到达点
,然后继续沿单位圆按逆时针方向转动角
到达
.若点
的横坐标为
,则点
的纵坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b4ca91f9c34da97ffb91195e8beb6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9ac7f5c2a744c676e60413cca43236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f8657de54481172ca9179c88c0c4c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
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2023·全国·模拟预测
名校
解题方法
4 . 在
中,内角A,
,
的对边分别为
,
,
,且满足
,
.
(1)求
外接圆的周长;
(2)若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/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/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cf1f3303fa8d22f44147a112677c18c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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5 . 已知函数
的两条相邻对称轴之间距离为
.
(1)求
的值;
(2)将函数
图象向右平移
个单位长度得到
的图象,若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b08a3fb9409c855718feb9e6ee2eedec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de9f172371ddc1a4917a80f0fef676f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a570e114117ec460bb9d03b865342632.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7d5ef3a3d9a03be91135fc426d57cc.png)
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解题方法
6 . 在
中,内角
的对边分别为
且满足
.
(1)求角
;
(2)若
,
,求
的面积;
(3)若
,求
的值.
![](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/389189cdee5472d4e3432403f6c54a96.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783d6adfa8fb1352679c5185258d842a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e876b53581904085bbc4e00fad0c718f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60f4f8020bef636dcb3b8dc5fa2bdbb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fc90eb7e72622d0665504a09286fa26.png)
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解题方法
7 . 已知
为坐标原点,点
在
轴正半轴上,点
在第一象限,且
,
,点
在第四象限,且
,
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d2408d04f4bcf651ef6d47ac75dc15e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f8783429be686df75afcd56e847dfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cbf276bcad120a33131e93c3eb532fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b9082ee8dab6c1e4e325c9db6b9f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7df99fe6438442a9453fc0c57fb703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c5f16774c3783cf853879b622d5a5f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-12-20更新
|
829次组卷
|
4卷引用:山东省潍坊市2024届高三上学期普通高中学科素养能力测评数学试题
8 . 已知函数
的图象过点
,且
的最小值为
.
(1)求函数
的解析式,并求出该函数的单调递增区间;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa73944ecd451922ad9ad49a00329ba4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39e716d1823555f2c693c6e126422ea7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6abf3f9b0ebcdc47a028c781b7edb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5400b0b58b123ba572efa0d295a42249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f021a65c471011ee58a992ec8bf79f.png)
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名校
9 . 已知
,
.
(1)当
,
时,求
;
(2)若
,求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7790bd0495c094f19c02bd40bf2c10a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fac2300b4c2c0eff0ae7b1fbd4adf2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165734ecdbdebd02a74083575d63bdd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50c91027a95439547df08d5978cc5aeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0c312a550c01dd5844803d959833d10.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b256d6f05a02b36a9fe5794cbe62f819.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
2023高三上·全国·专题练习
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解题方法
10 . 在某海域开展的“海上联合”反潜演习中,我方军舰要到达C岛完成任务.已知军舰位于B市的南偏东
方向上的A处,且在C岛的北偏东
方向上,B市在C岛的北偏东
方向上,且距离C岛
此时,我方军舰沿着
方向以
的速度航行,问:我方军舰大约需要多长时间到达C岛?(参考数据:
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9107007366104f89f6f2b02862e2fab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc8c4c300d672fd1ffacb92a78bbb99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06c6c656fb08ad41bbb2dd0ace5aeb58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c1844ed5bb2cd2dd4000782f3e42aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a325f8f0c9e44be7ca832199afddb29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460317e7c26f95b9b29cfe1a89b796d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef485c375127c3e304c6bff68ce7437.png)
您最近一年使用:0次
2023-12-20更新
|
584次组卷
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3卷引用:第四章 三角函数与解三角形 第七节 解三角形应用举例
(已下线)第四章 三角函数与解三角形 第七节 解三角形应用举例新疆维吾尔自治区伊犁哈萨克自治州霍尔果斯市苏港中学2023-2024学年高一下学期4月月考数学试题四川省绵阳南山中学2023-2024学年高一下学期期中考试数学试题