1 . 已知函数
,且
.
(1)求
;
(2)若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72d469ce65946f01efaa25b4a317c678.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec65a2bec3d4296c613a80b3ae41d5e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caa16aea6803864cc915c63e8ee9936c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a73b85378c1f65d0ca0e4c30a14ccee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
2 . 如图,在
中,点D在边BC上,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/9/c2bee236-5410-4fbe-b480-c471936550b9.png?resizew=162)
(1)若
,
,
,求AB;
(2)若
是锐角三角形,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8cabcef1cee1213140371c499339864.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/9/c2bee236-5410-4fbe-b480-c471936550b9.png?resizew=162)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30befab772a51c5727293a5cd056879e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc11331a7b2d2619b40ee6d34c3bd620.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe7a93172d308a58200e3c722fe1072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8d34198d24fd3ee8dfc0f81a5479b6d.png)
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2024-03-29更新
|
1335次组卷
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3卷引用:青海西宁市湟川中学2023-2024学年高三下学期开学考试理科数学试题
青海西宁市湟川中学2023-2024学年高三下学期开学考试理科数学试题(已下线)专题1.11解三角形常考大题归类-重难点突破及混淆易错规避(人教A版2019必修第二册)河南省郑州市宇华实验学校2023-2024学年高二下学期3月月考数学试题
3 . 已知
,函数
.
(1)当
时,解不等式
;
(2)若
的图象与
轴围成的面积小于
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a878fd5a7104a7f42770a19097d56457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892c27d7a14cad522657fc1df6245721.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024-03-15更新
|
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2卷引用:青海省海南州贵德高级中学2024届高三七模(开学考试)数学(理科)试题
名校
解题方法
4 . 在
中,内角A,B,C的对边分别为
.已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecae02f21ba7b7a072d241bd97b8a63b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
(1)求b;
(2)D为边
上一点,
,求
的长度和
的大小.
![](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/ecae02f21ba7b7a072d241bd97b8a63b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
(1)求b;
(2)D为边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e0d3b217853c57e212b7f5f13a1b83d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868ff1350bd72625328c85c3097cd85e.png)
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2024-03-15更新
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4卷引用:青海省海南州贵德高级中学2024届高三七模(开学考试)数学(理科)试题
5 . 在平面直角坐标系
中,曲线
的参数方程为
(t为参数),以坐标原点O为极点,
轴正半轴为极轴建立极坐标系,曲线
的极坐标方程为
.
(1)求曲线
与
的直角坐标方程;
(2)已知直线 l的极坐标方程为
,直线 l与曲线
,
分别交于
,
(异于点
)两点,若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a38690b19a76497c0b9f5522fd092e24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab585ff2aeb833fe29e511e37f1e8c7.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)已知直线 l的极坐标方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0234ac235c52fb0c8ac5fc5db6c1e2fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/24056a18563d0e33159f15410477dbf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
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3卷引用:青海省海南州贵德高级中学2024届高三七模(开学考试)数学(理科)试题
名校
6 . 已知函数 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b988be8419be2da12d12fef948269b.png)
(1)讨论
的单调性;
(2)证明:当
时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b988be8419be2da12d12fef948269b.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29939c0ca20c4b20397aca1c86eacd1b.png)
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2024-03-12更新
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7卷引用:青海省海南州贵德高级中学2024届高三七模(开学考试)数学(理科)试题
青海省海南州贵德高级中学2024届高三七模(开学考试)数学(理科)试题内蒙古部分学校2024届高三下学期一模考试数学(理科)试题(已下线)第1套 全真模拟篇 【模块三】福建省福州格致中学2023-2024学年高二下学期3月限时训练(月考)数学试卷(已下线)2023-2024学年高二下学期期中复习解答题压轴题十七大题型专练(1)(已下线)模块2专题7 对数均值不等式 巧妙解决双变量练福建省莆田第二十五中学2023-2024学年高二下学期期中考试数学试题
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解题方法
7 . 根据抛物线的光学性质可知,从抛物线的焦点发出的光线经该抛物线反射后与对称轴平行.已知抛物线C:
,如图,点F为C的焦点,过F的光线经拋物线反射后分别过点
,
.
(1)求C的方程;
(2)设点
,若过点
的直线与C交于R,T两点,求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdfdbde5e45f33dd3eab3fcf45e796ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7790bf081318706b9962b6aba7784f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/10/c80cf00c-4b20-441f-9719-061653c773d5.png?resizew=121)
(1)求C的方程;
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b3126e09b4d8e177e618d0169dd98d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44bdbc62c678a23e5e7fc8c34ffbf257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce634840a967c7a7444c0b079538320.png)
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解题方法
8 . 已知函数
.
(1)解不等式
;
(2)在直角坐标系xOy中,求不等式组
所确定的平面区域的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c47ff3aeceb2373a91bf51484c7740ea.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74dbd58b21a94cf93f4623c07452b102.png)
(2)在直角坐标系xOy中,求不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8931f949be93d315b37a72007ce185fb.png)
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9 . 在平面直角坐标系xOy中,曲线
:
(
为参数,
),以坐标原点O为极点,x轴正半轴为极轴建立极坐标系,曲线
的极坐标方程为
.
(1)写出
的普通方程与
的直角坐标方程;
(2)若直线l:
与
或
有公共点,求t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba71108ffb26b3000028e5cd1a10b660.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/299befdb29f7c57a1b0730631c51f8bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63480478b9fa7bf5e3f92b45c1ae189c.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)若直线l:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/254d0e3be93b3a32e45f3cd1f8c44891.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
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10 . 已知函数
.
(1)若
,当
时,讨论
的单调性;
(2)当
时,
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df774b7aec4543f1a9375271837021f7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e10dce73bdc1d522ae7cb34805ed3d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48350c9f896c18a64f27867ca81c9be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d011be02de5cc8ab52408b503744ad.png)
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