1 . 设
阶方矩阵
,则矩阵
所对应的矩阵变换为:
,其意义是把点
变换为点
,矩阵
叫做变换矩阵.
(1)当变换矩阵
时,点
,
经矩阵变换后得到点分别是
,
,求过点
的直线的点方向式方程.
(2)当变换矩阵
时,若直线上的任意点
经矩阵变换后得到的点
仍在该直线上,求直线方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd4f0d04828160d860f44d9296b49101.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9277ec70ebf91406542a21093a266e28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ead0c5a16ce4734c9e60838f927e894.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)当变换矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2da0f6636516838bedfbe5fa257f0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79fef5c2bdeab99d9d397c2dce4b416d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90b747a0d6458d973963bce3606eb74e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86380a6d6501f6504dcb4aa5e3099f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eae863e7a1f1fed09f1075de4a817c63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357e0872d9e98d662a780e7686de86ee.png)
(2)当变换矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8994c85faff0f37c9efdf7c8ccb160ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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2 . (选修4—2:矩阵与变换)
设矩阵
的一个特征值为
,若曲线
在矩阵
变换下的方程为
,求曲线
的方程.
设矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df295bf85c0489ebbd5a5d54d3c4f5c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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3 . (1)已知矩阵
,若矩阵
对应的变换把直线
:
变为直线
,求直线
的方程.
(2)在极坐标系中,圆
的方程为
,以极点为坐标原点,极轴为
轴 的正半轴建立平面直角坐标系,直线
的参数方程为
(
为参数),求直线
被 圆
截得的弦
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab347c098252993f4bc85b530e80b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512f4c29ff276b7f35052ad4cc255ab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/739287b139efcbb65361b1b2e6b94b01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/739287b139efcbb65361b1b2e6b94b01.png)
(2)在极坐标系中,圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbe1455e96ddefae948510aaa20da99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edf4e77a87a32d0c1d64261a5c057261.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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4 . 选修4-2:矩阵与变换
已知矩阵
,其中
.若点
在矩阵
的变换下得到点
.
(1)求实数
的值;
(2)若
,求
已知矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c14f6db90610193940dacb167de131bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/057db09504e1a3e62cd7fc678a7c31ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5631beb2a5954e3abf3b206d9e5ea0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16fe2e0348c82f65cf92d2c4c843a2ec.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d2ddebc8b53002f170f92d957b170fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f1174cf42ebc34240d624622758941.png)
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5 . 选修4-2:矩阵与变换
已知矩阵A=,直线l:x-y+4=0在矩阵A对应的变换作用下变为
直线l¢:x-y+2a=0.
(1)求实数a的值;
(2)求A2.
已知矩阵A=,直线l:x-y+4=0在矩阵A对应的变换作用下变为
直线l¢:x-y+2a=0.
(1)求实数a的值;
(2)求A2.
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6 . (本小题满分10分,矩阵与变换)
已知矩阵
,矩阵
,直线
经矩阵
所对应的变换得到直线
,直线
又经矩阵
所对应的变换得到直线
.
(1)求
的值;(2)求直线
的方程.
已知矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71c82422af9bb7bad3a29bbab0915a99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1efd5ca628e39905068e0045600a5e3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21b48a99b6c3582a0e62e164430e81e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb37c3caee98909bce78d6dd51ffb4f5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
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名校
7 . .选修4-2:矩阵与变换
已知
,矩阵
所对应的变换
将直线
变换为自身,求a,b的值.
已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/057db09504e1a3e62cd7fc678a7c31ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e76645d158cc2bf31080c4720bb48468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43d70d5962157e2116e7f1a267153967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6513e7d1ad16ed0ba54da88b098dc1d3.png)
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2016-12-03更新
|
445次组卷
|
2卷引用:2015届江苏省连云港、徐州、淮安、宿迁四市高三一模考试理科数学试卷
8 . 求直线
在矩阵
的变换下所得曲线的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6513e7d1ad16ed0ba54da88b098dc1d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d502e44c7bdd8f2483fb0f4eb76b6a69.png)
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12-13高三上·江苏扬州·阶段练习
名校
9 . 已知a,b
,若
=
所对应的变换TM把直线2x-y=3变换成自身,试求实数a,b.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/160daec0ad9ccc242f3e259eb4d61ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e114f7768f827f0694e7e591436417cc.png)
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真题
10 . 已知直线
在矩阵
对应的变换作用下变为直线
.
(1)求实数
,
的值
(2)若点
在直线
上,且
,求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f8a0937d041832815a07ca6e5684a1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c621edbbcb5cbc648568f1058729fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d257e52063f42fbaf460df4c73bfeb30.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf0d139c9810361b4971904a943856b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/576edaf54ef0adf171dbdf3bec559aeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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