名校
1 . 已知函数
.
(1)若
,求不等式
的解集;
(2)已知
在
上单调递增,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e0ba068906acd08973bf89c1c06e81c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dc64c9fc732c76bec3e691d7ddbbefe.png)
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解题方法
2 . 已知椭圆:
的离心率为
且椭圆经过点
.
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/3f4dfec890cdfdda355e19463f3be813.png)
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3 . 在锐角
中,设角
,
,
所对的边长分别为
,
,
,且
.
(1)求
的大小;
(2)若
,
,点
在边
上,___________,求
的长.
请在①
;②
;③
这三个条件中选择一个,补充在上面的横线上,并完成解答.
![](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/2071fbe35d3686fddc37a085686d7533.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27718c7561d646d66db48e330332471c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
请在①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15416b74b2ecbcfa38cf34a9ffff730.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe77f1d0f91b760154fbd2537ce178a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70734a8e672376bb0bd1522e229f86a2.png)
您最近一年使用:0次
2024-03-27更新
|
744次组卷
|
9卷引用:河北省沧州市沧县风化店中学2022-2023学年高二上学期开学考试数学试题
河北省沧州市沧县风化店中学2022-2023学年高二上学期开学考试数学试题江苏省南通市启东市2019-2020学年高一下学期期末数学试题广东省中山市2021届高三上学期期末数学试题(已下线)专题1.2 解三角形-结构不良型-2021年高考数学解答题挑战满分专项训练(新高考地区专用)北京市十一学校2021届高三综合练习数学试题江苏省徐州市铜山区2023-2024学年高一下学期第一次质量检测(3月)数学试卷(已下线)模块五 专题1 全真基础模拟1(高一)(已下线)模块五 专题1 全真基础模拟1(北师版高一期中)(已下线)9.1.2 余弦定理-【帮课堂】(人教B版2019必修第四册)
4 . 已知抛物线的顶点是椭圆
的中心,焦点与该椭圆的右焦点重合.
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)已知动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9065d65bdaef4398ce0da64de6d5677b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/e430f13f42cf2d44aa0f0e20b959684f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a0987f6e9131651f3e50fcd1647a33.png)
(3)是否存在垂直于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80672dda9430cb42b3136bcb1b67bbad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
5 . 记
的内角
,
,
的对边分别为
,
,
,已知
,
.
(1)求
;
(2)若
,求
的面积.
![](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/3578b63c5903089595bf324c809a997c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dded8b69ef3d9cd3dcddbc78a5fe6857.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b01adc561735ff5be9bb97266918f2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0136c37c35c4db6f66be20a4b3a5c8f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
解题方法
6 . 已知函数
在区间
上有最大值11和最小值3,且
.
(1)求
的值;
(2)若不等式
在
上有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7489a1ce5ffd3b0ba51c73246c90694a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb87c830a03204a5b783ad4c2ba49c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3029a39fe6d67da0c12f68fd19e155.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663a61ad241d5d874c9a9362f0ee917c.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0688abf363b5dee42f733aef19590f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6070f2ee5e48cce77eb4a2cb9f11ccfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
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解题方法
7 . 在治疗某种疾病中,某医院有两套治疗方案,方案一:以中医药为主,方案二:以西医药为主,为了检验这两种方案哪种方案更有效,随机选取150名患者进行分组对照治疗,其中应用方案一为80人,应用方案二为70人,经过一段时间治疗后,应用方案一组有65人明显好转或治愈,应用方案二组有45人明显好转或治愈.
(1)根据小概率值
的
独立性检验,能否判断方案的选择和治疗效果有关?
(2)利用分层随机抽样的方法从这两组中疗效不明显的患者中随机选取8人,再从这8人中随机选取4人,这4人中,选自方案二组的人数为
,求
的分布列与数学期望.
参考公式及参考数据:
.
(1)根据小概率值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ead9d6ff51996f3ebace6f212e11a9e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/953e89f7e797bf8fe9ff31e0d2f66728.png)
(2)利用分层随机抽样的方法从这两组中疗效不明显的患者中随机选取8人,再从这8人中随机选取4人,这4人中,选自方案二组的人数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
参考公式及参考数据:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c931474f58fa7c188670c0a94584729c.png)
![]() | 0.25 | 0.15 | 0.10 | 0.05 | 0.025 | 0.010 | 0.001 |
![]() | 1.323 | 2.072 | 2.706 | 3.841 | 5.024 | 6.635 | 10.828 |
您最近一年使用:0次
8 . 已知
.
(1)当
时,求
的零点个数;
(2)讨论
的单调性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e14ef32cb49c8362c8886a7d7e43e82.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
名校
解题方法
9 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a33a3d0c1bc303aff8d2d9bd16a7a71.png)
(1)求
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a33a3d0c1bc303aff8d2d9bd16a7a71.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b352192355d5965498cffd01511ef18.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/231813e1ae35224ab38f9b9c9fa04154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26cd826bf9ed9ca6e2bbb477da71c90b.png)
您最近一年使用:0次
2024-03-14更新
|
992次组卷
|
2卷引用:河北省唐山市第五中学2023-2024学年高一下学期开学考试数学试题
名校
10 . 如图,在矩形
中,
,
.沿对角线
折起,形成一个四面体
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/7/a68008c9-8c26-4fc0-8eb2-e99b6b1d4855.png?resizew=354)
(1)是否存在
,使得
,
同时成立?若存在,求出
的值;若不存在,请说明理由.
(2)求当二面角
的正弦值为多少时,四面体
的体积最大.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ea52361458ce2e49ed0fe99d8e6c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15fcde639611cd140a6ffcd336bc5e27.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/7/a68008c9-8c26-4fc0-8eb2-e99b6b1d4855.png?resizew=354)
(1)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77e3c1c236141d6118429fade0a9b9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5f215a42c4b7078d8d65923eb9980e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求当二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca6d1c5eace748465b2dad5065f5111c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
您最近一年使用:0次