解题方法
1 .
的内角A,B,C的对边分别为a,b,c,已知
,
.
(1)求
面积的最大值;
(2)若
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acb4162c72ae8f072ce33136a21c2b47.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82a5ec335fb8e65dcd0a12c0af06937.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2 . 如图,在平面四边形
中,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/5/24/2986405733171200/2987120984711168/STEM/ca7c7ac9-3dfc-4333-826e-c1b5709267cf.png?resizew=167)
(1)当
,
时,求
的面积;
(2)当
,
时,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efd8d5c8e8ad840dd3c5db651728ea0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b30165a5ae2b3e8f62462ec5efb836.png)
![](https://img.xkw.com/dksih/QBM/2022/5/24/2986405733171200/2987120984711168/STEM/ca7c7ac9-3dfc-4333-826e-c1b5709267cf.png?resizew=167)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f144992e1cbee34868abce1e5ad38c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204fb7cfd350a616164c68ec109880ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe7f0401adb20a8b873d6997b2f6a236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f0933102d94632ac9e3284113fd937.png)
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2022-05-25更新
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8卷引用:湖北省武汉市2022届高三下学期五月模拟(二)数学试题
湖北省武汉市2022届高三下学期五月模拟(二)数学试题福建省厦门双十中学2023届高三高考适应性考试数学试题湖北省武汉外国语学校2022-2023学年高一下学期期中数学试题(已下线)专题3-2 解三角形最值范围与图形归类(讲+练)-1安徽省马鞍山市第二中学2022-2023学年高一下学期期中素质模拟测试数学试题河南省焦作市博爱县第一中学2022-2023学年高二下学期3月月考数学试题(已下线)专题14 解三角形图形类问题-1黑龙江省大庆市大庆铁人中学2022-2023学年高一下学期期中数学试题
解题方法
3 . 在
中,角A,B,C所对的边分别为a,b,c,已知
.
(1)若
,求
;
(2)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e09bb9e90021ee0b55f93467a6fe80ad.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc560914a24fb80a6608da7a188f8724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32e2f2d7147cf1699fbfdef9cf4af74.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980ab4deb9e7f2bc9288787f5243a4d2.png)
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解题方法
4 . 在
中,内角
,
,
所对的边分别为
,
,
,且
.
(1)求
;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/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/2a062b5eeaaf6325a4a13dd42bef4917.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18af922d7bcd7a1bfbd89398d86eda5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
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2022-04-22更新
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9卷引用:湖北省十堰市2022届高三下学期4月调研数学试题
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5 . 已知函数
.
(1)在区间
中,求函数
的单调增区间;
(2)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f1fd0d03ad19984baacc4a08ce73bb.png)
(1)在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1613d377a07850c72cbec354b7a3000f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d90a6b4a6b1f11480694e735865bb75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd244f5026f292448be993ff05cd61c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c7793bfd801e2592b1e1e3f61a308ce.png)
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2021-07-23更新
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10卷引用:湖北省武汉市黄陂区第一中学2021届高三下学期高考押题卷数学试题
湖北省武汉市黄陂区第一中学2021届高三下学期高考押题卷数学试题2020届上海市金山区高三二模数学试题上海市进才中学2019-2020学年高一下学期期中数学试题(已下线)第6章三角(能力提升)-2020-2021学年高一数学下册单元测试定心卷(沪教版2020必修第二册)上海市控江中学2020-2021学年高一下学期期中数学试题江苏省南京市第二十九中学2020-2021学年高一下学期6月学情检测数学试题(已下线)课时18 三角恒等变换-2022年高考数学一轮复习小题多维练(上海专用)(已下线)第五章 三角函数专练2—恒等变换(1)-2022届高三数学一轮复习(已下线)专题06 三角函数-备战2022年高考数学(文)母题题源解密(全国乙卷)(已下线)考点15 三角函数式的化简与求值-备战2022年高考数学典型试题解读与变式
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6 .
中,内角A、B、C的对边分别为a,b,c.已知
,
.
(1)求
的值;
(2)若
,求b.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/534f33cc16d82470cbff68beffead264.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0c51706742717f9f5a92d95c31b51b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/721e29b775e696045f44a4b1e7f74ef2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39900a2d790732077ffb571427a134fd.png)
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7 . 如图,在梯形
中,
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/dabd6acd-5a77-4962-80ee-7914efccdcde.png?resizew=284)
(1)求
的长;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd1b407a086ea9bdfa6fa598b1d5557b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3e7f748d88b4eadfd1643c6b31fdf08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b7f8024c3cd38ffff8fe5002d128060.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/dabd6acd-5a77-4962-80ee-7914efccdcde.png?resizew=284)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e645129e4853159372d4aa26a8e611b3.png)
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