1 . 轮船
从某港口将一些物品送到正航行的轮船
上,在轮船
出发时,轮船
位于港口
北偏西
且与
相距20海里的
处,并正以30海里的航速沿正东方向匀速行驶,假设轮船
沿直线方向以
海里/小时的航速匀速行驶,经过
小时与轮船
相遇.
(1)若使相遇时轮船
航距最短,则轮船
的航行速度大小应为多少?
(2)假设轮船
的最高航速只能达到30海里/小时,则轮船
以多大速度及什么航行方向才能在最短时间与轮船
相遇,并说明理由.
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)若使相遇时轮船
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)假设轮船
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
2017-11-28更新
|
478次组卷
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2卷引用:河南省某重点高中2017-2018学年上学期高二期中考试数学(理)试卷
名校
2 . 已知某渔船在渔港
的南偏东
方向,距离渔港约
海里的
处出现险情,此时在渔港的正上方恰好有一架海事巡逻飞机
接到渔船的求救信号,海事巡逻飞机迅速将情况通知了在
处的渔政船并要求其迅速赶往出事地点施救.若海事巡逻飞机测得渔船
的俯角为
,测得渔政船
的俯角为
,且渔政船位于渔船的北偏东
方向上.
(1)计算渔政船
与渔港
的距离;
(2)若渔政船以每小时
海里的速度直线行驶,能否在
小时内赶到出事地点?
(参考数据:
,
,
,
,
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3864983798fe836a591e13783fd9e82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bfa71cd7a3cb3fca8af27c2145a7e92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8757a5cce9af63d14be4506053b9d539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
(1)计算渔政船
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(2)若渔政船以每小时
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06fc7811f9525e8b8c833746d6af5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
(参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8512e11a2a086774a1b379e8e1e36cdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae1b318686f28ab221a6baaeb0a88073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e57eb7a53cf7c790889f61c456d28b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ba381266d36bdddc04cb3a32aaf8aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f500231674dddd0a75ba2896fc250771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860242322dc93577abac1ae5aa95c945.png)
![](https://img.xkw.com/dksih/QBM/2019/4/13/2181634926616576/2183853768835072/STEM/0e6f21e1d83749da95745f339d29dd7f.png?resizew=253)
您最近一年使用:0次
2017-10-27更新
|
313次组卷
|
2卷引用:安徽省六安一中2017-2018学年高二10月阶段检测数学文试题
名校
3 . 如图,为了测量正在海面匀速行驶的某船的速度,在海岸上选取距离1千米的两个观察点C、D,在某天10:00观察到该船在A处,此时测得
,2分钟后该船行驶至B处,此时测得
,
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/25/07df4ddd-afd5-45b3-be29-768de141d60b.png?resizew=181)
求该船航行的速度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6662097cf94dc37facdaba44b49966d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa19e8946e948737e485aca5787bd67e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/25/07df4ddd-afd5-45b3-be29-768de141d60b.png?resizew=181)
求该船航行的速度.
您最近一年使用:0次
名校
4 . 如图,摩天轮的半径
为
,它的最低点
距地面的高度忽略不计.地上有一长度为
的景观带
,它与摩天轮在同一竖直平面内,且
.点
从最低点
处逆时针方向转动到最高点
处,记
.
(1)当
时,求点
距地面的高度
;
(2)试确定
的值,使得
取得最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c56c87fd6bf8a44244ba51a9d244e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e5a9f3e8d5195407764713fb5ff259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d485836d3af0a10f198c155d1fb2010e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/4ef9d43fc43009c238bb80fd44def659.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0817e4c901a4729662505086e7ec6c69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
(2)试确定
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45a8a837c11c07073da3ff751d70278.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/24/524d78d2-f8dd-4e7b-8a4a-89f9e394308d.png?resizew=434)
您最近一年使用:0次
2017-10-17更新
|
478次组卷
|
2卷引用:江苏省泰州中学2018届高三10月月考数学(理)试题
名校
解题方法
5 . 如图,在海岸线
一侧
处有一个美丽的小岛,某旅游公司为方便游客,在
上设立了
两个报名点,满足
中任意两点间的距离为
.公司拟按以下思路运作:先将
两处游客分别乘车集中到
之间的中转点
处(点
异于
两点),然后乘同一艘轮游轮前往
岛.据统计,每批游客A处需发车2辆,
处需发车4辆,每辆汽车每千米耗费
元,游轮每千米耗费
元.(其中
是正常数)设∠
,每批游客从各自报名点到
岛所需运输成本为
元.
![](https://img.xkw.com/dksih/QBM/2017/9/5/1767578228334592/1768334343708672/STEM/352e8feaf63f48a79a68eb43d3d2577b.png?resizew=219)
(1)写出
关于
的函数表达式,并指出
的取值范围;
(2)问:中转点
距离A处多远时,S最小?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3fb33e7fb8709bd8d5db686644d50b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/878e89b6eca35e34c863e832a2c661db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d08b09e504be0a69932b8e4155e2def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87fda5105a8b546e23d4d88a46188227.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://img.xkw.com/dksih/QBM/2017/9/5/1767578228334592/1768334343708672/STEM/352e8feaf63f48a79a68eb43d3d2577b.png?resizew=219)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)问:中转点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
您最近一年使用:0次
2017-09-06更新
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709次组卷
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4卷引用:江苏省南京市溧水高级中学2018届高三上学期期初模拟考试 数学
江苏省南京市溧水高级中学2018届高三上学期期初模拟考试 数学2017-2018第一学期江苏省东台安丰中学高三数学第一次月考试卷(文)(已下线)2019年一轮复习讲练测【新课标版理】4.7 正弦定理和余弦定理的应用【测】(已下线)2019年一轮复习讲练测【新课标版文】4.7 正弦定理和余弦定理的应用【测】
解题方法
6 . 在
中,角
的对边分别为
,并且
.
(1)若角
成等差数列,求
外接圆的半径;
(2)若三边
成等差数列,求
内切圆半径的最大值.
![](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/03837b3769eda7f0d3804cc5ad4a6d60.png)
(1)若角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若三边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
7 . 如图,我国南海某处的一个圆形海域上有四个小岛,小岛
与小岛
、小岛
相距都为
,与小岛
相距为
.小岛
对小岛
与
的视角为钝角,且
.
![](https://img.xkw.com/dksih/QBM/2015/12/14/1572361334325248/1572361340411904/STEM/b668ce96-c326-4df6-bdc1-f1fc43381b4b.png?resizew=230)
(Ⅰ)求小岛
与小岛
之间的距离和四个小岛所形成的四边形的面积;
(Ⅱ)记小岛
对小岛
与
的视角为
,小岛
对小岛
与
的视角为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d83bdaf481e133f89136491b2d5189.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec617c6e9e5aaa61d8540b92c6adbfd.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ee608882881caff2f1e223177424ac.png)
![](https://img.xkw.com/dksih/QBM/2015/12/14/1572361334325248/1572361340411904/STEM/b668ce96-c326-4df6-bdc1-f1fc43381b4b.png?resizew=230)
(Ⅰ)求小岛
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(Ⅱ)记小岛
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/e170f206fdbbd834aad7580c727e2cc6.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d8d24b6d6dd0717c226569e345d9f0.png)
您最近一年使用:0次
2016-12-03更新
|
1239次组卷
|
7卷引用:2016届辽宁省葫芦岛市一中高三上学期期中理科数学试卷
2014·湖南怀化·二模
8 . 如图所示,某建筑工地准备建造一间两面靠墙的三角形露天仓库堆放材料,已知已有两面墙
、
的夹角为
(即
),现有可供建造第三面围墙的材料
米(两面墙的长均大于
米),为了使得仓库的面积尽可能大,记
,问当
为多少时,所建造的三角形露天仓库的面积最大,并求出最大值?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d81d732204a3c2384a27606f858677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01dcbd171693a47c5b932a5e84de10c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://img.xkw.com/dksih/QBM/2015/7/9/1572172968321024/1572172973998080/STEM/82c1ae827dde436c9bfea56969db36fd.png)
您最近一年使用:0次
9 . 如图所示,某市拟在长为
道路
的一侧修建一条运动赛道,赛道的前一部分为曲线段
,该曲线段为函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d001d519e43cc87071be4f26417904.png)
的图像,且图像的最高点为
,赛道的后一部分为折线段
,且
.
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135465951232/1572135471882240/STEM/7d5ea360edcb4945a64257ddb71bce87.png)
(1)求
、
两点间的直线距离;
(2)求折线段赛道
长度的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48b867769b949c2b031a3fe6d11667b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/606933719a24e9a5e214600b772a093f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d001d519e43cc87071be4f26417904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ead6e25df9d973e6068467451ec20903.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f15fbeccc8b7f96c015dcb76e425f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52173c8cc44246823c2bee21a783b731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d995a4c9c334ea912c7da5e7bbacc026.png)
![](https://img.xkw.com/dksih/QBM/2015/6/19/1572135465951232/1572135471882240/STEM/7d5ea360edcb4945a64257ddb71bce87.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)求折线段赛道
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52173c8cc44246823c2bee21a783b731.png)
您最近一年使用:0次
2016-12-03更新
|
1047次组卷
|
2卷引用:2015届上海市闸北区高三下学期期中练习(二模)理科数学试卷
9-10高二下·河南郑州·期末
10 . 如图,金砂公园有一块边长为
的等边
的边角地,现修成草坪,图中
把草坪分成面积相等的两部分,
在
上,
在
上.
(Ⅰ)设
,
,求
关于
的函数关系式;
(Ⅱ)如果
是灌溉水管,我们希望它最短,则
的位置应在哪里?请予以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(Ⅰ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2633a6f46b0847158eebb05c743561aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5d70e5d13db498f1c8a2e017c56e58b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(Ⅱ)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
2016-11-30更新
|
1524次组卷
|
5卷引用:郑州智林学校09-10学年高二下学期期末考试数学试卷(理科)
(已下线)郑州智林学校09-10学年高二下学期期末考试数学试卷(理科)人教B版(2019) 必修第四册 逆袭之路 第九章 解三角形 本章小结辽宁省六校2019-2020学年高一下学期期初考试数学试题(已下线)第九章 解三角形 本章小结人教B版(2019)必修第四册课本习题第九章本章小结