解题方法
1 . 已知
的内角
的对边分别为
,
.
(1)求角
的大小;
(2)若
,求b+c的取值范围.
![](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/d700ccd172fe620dd5c4809b5f2fd49d.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
您最近一年使用:0次
2023-01-09更新
|
470次组卷
|
3卷引用:吉林省洮南市第一中学2020-2021学年高一下学期第一次月考数学(理)试题
吉林省洮南市第一中学2020-2021学年高一下学期第一次月考数学(理)试题广东省东莞市万江中学2022-2023学年高一下学期3月月考数学试题(已下线)第一次月考卷01-《重难点题型·高分突破》(人教A版2019必修第二册)
名校
解题方法
2 . 由于疫情原因,经济活动大范围停顿,餐饮业受到重大影响.李克强总理在考察山东烟台一处老旧小区时提到,地摊经济、小店经济是就业岗位的重要来源,是人间的烟火,和“高大上”一样,是中国的生机.某商场准备在商场门前“摆地摊”,经营冷饮生意.已知该商场门前是一块角形区域,如图所示,其中
,且在该区域内点
处有一个路灯,经测量点
到区域边界
、
的距离分别为
,
,(
为长度单位).设计者准备过点
修建一条长椅
(点
、
分别落在
、
上,长椅的宽度及路灯的粗细忽略不计),以供购买冷饮的人休息.
![](https://img.xkw.com/dksih/QBM/2022/5/23/2985461883084800/2986830416019456/STEM/24de1586-efea-4420-8fad-23354a24c5e8.png?resizew=190)
(1)求点
到点
的距离;
(2)求点
到点
的距离;
(3)为优化经营面积,当
等于多少时,该三角形
区域面积最小?并求出面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d5bb3031d527aa204fcbfb5de0f34a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba11da08fd94c3579307ef7aef8b667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e41a8e7118403114a96ef51410a623b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15e00f40396e914d1d9955bd7785f1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://img.xkw.com/dksih/QBM/2022/5/23/2985461883084800/2986830416019456/STEM/24de1586-efea-4420-8fad-23354a24c5e8.png?resizew=190)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(3)为优化经营面积,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ce50ba5e349425274f05d46d120a74.png)
您最近一年使用:0次
2022-05-25更新
|
237次组卷
|
4卷引用:吉林省延边第二中学2020-2021学年高一下学期第一次考试月考数学试题
吉林省延边第二中学2020-2021学年高一下学期第一次考试月考数学试题(已下线)第六章 平面向量及其应用 章末测试(提升)-2021-2022学年高一数学一隅三反系列(人教A版2019必修第二册)河北省定州市2021-2022学年高一下学期期中数学试题新疆生产建设兵团第三师图木舒克市第一中学2022-2023学年高一下学期3月月考数学试题
名校
解题方法
3 .
的三个内角A,B,C所对的边为a,b,c,且
,
(1)求角A的大小;
(2)若
,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb8391a30a191b22e483db135fd476cd.png)
(1)求角A的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2022-03-31更新
|
1678次组卷
|
14卷引用:吉林省长春市东北师大附中2021届高三五模数学(文)试题
吉林省长春市东北师大附中2021届高三五模数学(文)试题(已下线)专题9.3《解三角形》(A卷基础篇)-2020-2021学年高一数学必修第四册同步单元AB卷(新教材人教B版)东北师范大学附属中学2021届高三第五次模拟考试文科数学试题广东省广大附中、铁一、广外三校2020-2021学年高一下学期期中联考数学试题宁夏长庆高级中学2020-2021学年高一下学期期末数学试题西藏自治区林芝市第二高级中学2022届高三上学期第一次月考数学(理)试题湖南省张家界市民族中学2019-2020学年高一下学期第二次月考数学试题河北省深州长江中学2020-2021学年高二上学期期中数学试题山东省烟台第二中学2021-2022学年高二下学期第一次阶段测试数学试题湖南省邵阳市第二中学2021-2022学年高一下学期期中数学试题河北省保定市第二十八中学2021-2022学年高一下学期第一次月考数学试题四川省邻水县第二中学2021-2022学年高三上学期9月月考数学理科试题湖南师大第二附属中学2022-2023学年高一下学期期中数学试题新疆伊犁州霍城县江苏中学2023-2024学年高一下学期3月月考数学试题
解题方法
4 . 在
中,
,
,
所对的边分别为
,
,
,且满足
.
(1)求角
;
(2)若
为锐角三角形且
,求
边长及
面积的取值范围.
![](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/15bfe2adb6c35cd62c42f840d00e85f0.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52b31980c7228f4db637e0ea5bb67bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解题方法
5 . 在
中,
,
,
所对的边分别为
,
,
且满足
.
(1)求角
;
(2)若
为锐角三角形且
,求
边长及
面积的取值范围.
![](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/15bfe2adb6c35cd62c42f840d00e85f0.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee54e2f63154c353161fdbd804f95802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
20-21高一·全国·单元测试
名校
解题方法
6 . 在
中,
分别为内角
所对的边,且满足
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/d5e19e05-17bd-40af-a348-19e2b11dd6db.png?resizew=146)
(1)求角
的大小;
(2)若
,在边
上分别取
两点,将
沿直线
折叠,使顶点
正好落在边
上,求线段
长度的最小值.
![](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/003e0896efa62a65f1de7067b3502243.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/d5e19e05-17bd-40af-a348-19e2b11dd6db.png?resizew=146)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71eda28755639d00f9d24b95679d9496.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
2021-10-11更新
|
496次组卷
|
3卷引用:吉林省梅河口市第五中学2021-2022学年高三上学期第一次月考数学(理)试题
吉林省梅河口市第五中学2021-2022学年高三上学期第一次月考数学(理)试题(已下线)第11章 解三角形(基础卷)-2020-2021学年高一数学十分钟同步课堂专练(苏教版2019必修第二册)河北省石家庄市第一中学2021-2022学年高二上学期期中数学试题
名校
解题方法
7 . (1)在
中,角
,
,
所对的边分别为
,
,
,若
,且
,则
内切圆半径的最大值为_________
(2)随着节假日外出旅游人数增多,倡导文明旅游的同时,生活垃圾处理也面临新的挑战,某海滨城市沿海有
三个旅游景点,在岸边
两地的中点处设有一个垃圾回收站点
(如图),
两地相距10
,从回收站
观望
地和
地所成的视角为
,且
,设
;
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/17b659bb-4a21-4760-bee5-ae6ad8fc5443.png?resizew=275)
(i)用
分别表示
和
,并求出
的取值范围;
(ii)若
地到直线
的距离为
,求
的最大值.
![](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/7d1c5be017948dccd376d0c2c3c15a54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)随着节假日外出旅游人数增多,倡导文明旅游的同时,生活垃圾处理也面临新的挑战,某海滨城市沿海有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c0ae8e92dd3119d41f2c830ea526516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb398137779190b35492d9f06d5fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f555f3cbe968094310f4ee675bf28fc7.png)
![](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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d387d228f512ada68fc79c9d5775b077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82bd407479fe107719b44144675d27ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bfc0387785bf3c60f75ed3d34cc98a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f555f3cbe968094310f4ee675bf28fc7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/17b659bb-4a21-4760-bee5-ae6ad8fc5443.png?resizew=275)
(i)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/555cbd3991d8a6dd4aced8dd6927db17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ace585d3cc2e113a0927cdf9e56756a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(ii)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
您最近一年使用:0次
名校
8 . 已知函数
.
(1)求
对称轴并写出
如何变换得到函数
;
(2)
的三内角
,
,
对的边分别为
,
,
.且
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ce82577aa06734177dc7d3e2f68351d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e20ac526a05ec08eded93dcd138221c0.png)
(2)
![](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/43ac8f98ae8b30c3a5f267795fadaf51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c2d770627f29a7c1fa6659ecee13b54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
名校
解题方法
9 . 已知
中,
.
![](https://img.xkw.com/dksih/QBM/2021/7/25/2772004297392128/2784664253325312/STEM/755c094905514c11bbb3e06b1fe80921.png?resizew=234)
(1)求角
的大小;
(2)已知
,
,若
、
是边
上的点,使
,求当
面积最小时,
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4083d32aab1e970ed785fb157e368eb.png)
![](https://img.xkw.com/dksih/QBM/2021/7/25/2772004297392128/2784664253325312/STEM/755c094905514c11bbb3e06b1fe80921.png?resizew=234)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e38f550e95b2950f91e8ec1798b94109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc8ff8c3364857e5688b83fa1731802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a6f7ba4bc6ca4347340f44fbb55b3ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
您最近一年使用:0次
名校
10 . 如图,甲船以每小时
海里的速度向正北方航行,乙船按固定方向匀速直线航行,当甲船位于
处时,乙船位于甲船的北偏西
方向的
处,此时两船相距
海里;当甲船航行
分钟到达
处时,乙船航行到甲船的北偏西
方向的
处,此时两船相距
海里.
![](https://img.xkw.com/dksih/QBM/2021/7/13/2763378167824384/2766899290882048/STEM/726f651d90c5435f9d19225bb93b73dd.png?resizew=146)
(1)求乙船的速度;
(2)若乙船在
处的航行速度提高到每小时
海里,甲船的航行速度不变,试问甲、乙两船是否会相遇,若相遇,则求出甲船从
处到相遇所用的时间;若不相遇,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53c7539ed297ea63b9ace6f5cc58ca8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb743a36b994898c772acbc1b92d2a3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7fdaf9c9ae3eb3d4077ea8aa38dd90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7f27ebcef70a3ebbbe8d2e53ea0896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231b861d6d1f1d0b9f52b041cb40eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://img.xkw.com/dksih/QBM/2021/7/13/2763378167824384/2766899290882048/STEM/726f651d90c5435f9d19225bb93b73dd.png?resizew=146)
(1)求乙船的速度;
(2)若乙船在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48de9da1b7fca16b44d9f6ee454a6c77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aeef4708e3cc604f46fe73cd13552fe.png)
您最近一年使用:0次
2021-07-18更新
|
377次组卷
|
3卷引用:吉林省梅河口市第五中学2020-2021学年高一下学期期末联考数学试题