名校
1 . 已知关于
、
的方程组
,
为常数,且
.
(1)写出此方程组的系数矩阵;
(2)解此方程组.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/671afef8db94741a7256e3194a438e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
(1)写出此方程组的系数矩阵;
(2)解此方程组.
您最近一年使用:0次
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解题方法
2 . 在平面直角坐标系
中,若在曲线
的方程
中,以
(
为非零的正实数)代替
得到曲线
的方程
,则称曲线
、
关于原点“伸缩”,变换
称为“伸缩变换”,
称为伸缩比.
(1)已知
的方程为
,伸缩比
,求
关于原点“伸缩变换”所得曲线
的方程;
(2)射线
的方程
(
),如果椭圆
:
经“伸缩变换”后得到椭圆
,若射线
与椭圆
、
分别交于两点
、
,且
,求椭圆
的方程;
(3)对抛物线
:
,作变换
,得抛物线
:
;对
作变换
得抛物线
:
,如此进行下去,对抛物线
:
作变换
,得
:
若
,
,求数列
的通项公式
.
![](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/5bbbf52d1f9d61b41bdd4acfc9fac268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9b4a5238402bff57cc8c915a07d93e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3dc8adc012d6051c2494aebbe924ea.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/d42e1d3efac50e8a51b7dd8bd9c29297.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec547b073f963a99feadb396f8ed0a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91a18f8751aa1008f1e43516a588207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d12ebd10f6c0bcf98be52c32b107f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/5ff1c07d3ab5f594be5fffe13ebaaccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(3)对抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30cc27e0e77e2e2eefae00d4d72c321a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ec829a0e5e46cb89b9be3e2474f2fc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/213a9f11bdbfb3eadef6373631a30987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f41dbefa0a0aa359a885792f264b82c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6095acaf330fa590f0a5ee02d10849a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc31dcdb99754fc452ff2b92a2fb8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404699b2c820c8a6816ba6e9132a3348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18fd09da62944f8db414b9044016f71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ef5e3261e7ba88ac6ee3a4bb39c447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f17541060bfb1ae98c20ebd4dea07b14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5cfb0d2cf24c1da7ba972e0218a974.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/353518b530f418e3b507d73d46a9d4f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/960b682f983b053dc9064cf29c97e250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffb021aa7d5a5c2f0691e337caad624.png)
您最近一年使用:0次
2020-12-03更新
|
994次组卷
|
6卷引用:上海市松江二中2021届高三上学期期中数学试题
上海市松江二中2021届高三上学期期中数学试题(已下线)热点07 解析几何-2021年高考数学【热点·重点·难点】专练(上海专用)高中数学解题兵法 第一百二十讲 环肥燕瘦——奇异美(已下线)【一题多变】仿射变换 性质良好江苏省南京市南京师大附中2024届高三寒假模拟测试数学试题江苏省盐城市东台市安丰中学等六校2024届高三下学期4月联考数学试题
名校
3 . 已知关于
、
的二元一次方程组
.
(1)写出系数矩阵和增广矩阵;
(2)讨论解的情况.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75a5432a0fb65e1536c39dcbb8ff80e2.png)
(1)写出系数矩阵和增广矩阵;
(2)讨论解的情况.
您最近一年使用:0次
4 . 若矩阵
,定义
为行列式
的值,已知
,
,
,求矩阵
、
,并比较
和
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d08c396f1024c193297dfc269677636e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6561cc3fcdffc8bbf78c4e8fbad6e0cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/555eaed9ff42d175444d6c249e8c7bf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf039c46a25e331446c6ee1e9af3c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354b2f69e6ed3a475d05a42958019c7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a95ef4c81a54df1906998a101d73a35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99de34d8d767424f869111af4cd2c538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d134f3e5ccd2d58b567678256efc4de0.png)
您最近一年使用:0次
5 . 已知在直角坐标平面内,三角形
中
、
、
.
(1)求
边上的高所在直线的点法向式方程;
(2)求
的垂直平分线的点方向式方程;
(3)利用三阶行列式计算三角形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/740c4190237d5fb6be669520cf9d685c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/097e8a6a6de675f44d3bef88bb37375c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24dba5cc987db7f50f9b8e2d4544006d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(3)利用三阶行列式计算三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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6 . 小金、小徐、大刘、小刘、小李五位同学每天的运动时间情况如下表:
假设:慢跑每小时消耗600卡路里能量,步行每小时消耗300卡路里能量,骑自行车每小时消耗1200卡路里能量.请用你学到的矩阵运算的方法帮助这五位同学计算一下他们每天消耗的能量,并指出哪位同学的运动方式消耗的能量最多.
慢跑(分钟) | 步行(分钟) | 骑自行车(分钟) | |
小金 | 20 | 20 | 15 |
小徐 | 20 | 30 | 10 |
大刘 | 10 | 40 | 20 |
小刘 | 30 | 10 | 10 |
小李 | 15 | 10 | 20 |
您最近一年使用:0次
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7 .
为已知实数, 直线
的方程为
,直线
的方程为
.
(1)讨论直线
与
的位置关系;
(2)当直线
与
平行时,求这两条平行线的距离的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdbefea8499c436a695b2905faf836f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e54d4db4ceb7b7a187fbe81d3477067.png)
(1)讨论直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(2)当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
您最近一年使用:0次
2020-11-15更新
|
271次组卷
|
4卷引用:上海市复旦大学附属中学2020-2021学年高二上学期期中数学试题
上海市复旦大学附属中学2020-2021学年高二上学期期中数学试题上海市嘉定区第一中学2020-2021学年高二上学期12月月考数学试题沪教版(2020) 选修第一册 同步跟踪练习 第1章 1.3~1.4阶段综合训练(已下线)1.4点到直线的距离(作业)-【教材配套课件+作业】2022-2023学年高二数学精品教学课件(沪教版2020选修第一册)
名校
解题方法
8 . 已知直线
,
,利用行列式的知识讨论当实数
满足什么条件时两直线
(1)相交;
(2)平行.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb41a4be4aa425ee3db38eef104a73e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c53a0ead2e909a71ca3dd4b630f184c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)相交;
(2)平行.
您最近一年使用:0次
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9 . (1)设向量
,
,向量
垂直于向量
,向量
平行于
,试求
时,
的坐标;
(2)用行列式解方程组
(
为常数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d72c37a4a3a308e1f019a7b5074785.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/215e52cd8cf624e9dd412978fe4e81a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4407c0b2e5febf70f610bd00067f105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/329fdf7d989f77a32ca9e0361a9cc956.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1da92a2fc2ce861e82f7192fe4e648f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dfde0038de382d2be9701cea23ef7eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1876f10610ac6e4f0529a6877e51415f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c10c8b60c45bdd5a49b5c130e755d9e8.png)
(2)用行列式解方程组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f26edc0fc55b1b933c016b5bb6c49d53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
10 . 用行列式解关于
,
的二元一次方程组,并对解的情况进行讨论:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6b5cfb1acd789b6831a511770353070.png)
您最近一年使用:0次