1 . 已知矩阵
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b84fa1487edf1b2bb4f0091f3a32e58.png)
__________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df97034702edb04576d8f17eabe014b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e74d9c95df7b4b0cbda4f0a7bd4981f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b84fa1487edf1b2bb4f0091f3a32e58.png)
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2 . 若增广矩阵为
的线性方程组的解为
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89dd94e2be99716b3e3762a12c4a4c4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b342e49815220f2c0c16d65f8f92e9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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2020-07-06更新
|
184次组卷
|
4卷引用:上海市上海师范大学附属中学2020-2021学年高二上学期期中数学试题
上海市上海师范大学附属中学2020-2021学年高二上学期期中数学试题2020届上海市普陀区高三二模数学试题上海市普陀区2020届高三下学期质量调研数学试题(已下线)课时28 矩阵的概念及运算-2022年高考数学一轮复习小题多维练(上海专用)
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3 . 计算矩阵的乘积:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ae108d7e349ff65c061863106a925a.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ae108d7e349ff65c061863106a925a.png)
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2020-05-27更新
|
240次组卷
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3卷引用:上海市交大附中2019-2020学年高三下学期期中数学试题
上海市交大附中2019-2020学年高三下学期期中数学试题2020届上海市上海大学附属中学高三下学期三模(考前评估)数学试题(已下线)课时28 矩阵的概念及运算-2022年高考数学一轮复习小题多维练(上海专用)
名校
4 . 若矩阵
是线性方程组
的系数矩阵,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f48f1fa606d4be1ca3f48e562030e4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f85d78aedf5469294ff9dce1534297.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-05-13更新
|
193次组卷
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4卷引用:上海市五爱高级中学2021届高三上学期期中数学试题
上海市五爱高级中学2021届高三上学期期中数学试题2020届上海市崇明区高三二模数学试题(已下线)课时28 矩阵的概念及运算-2022年高考数学一轮复习小题多维练(上海专用)上海市南汇中学2022届高三下学期3月月考数学试题
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5 . 设数阵
,其中
、
、
、
.设
,其中
,
且
.定义变换
为“对于数阵的每一行,若其中有
或
,则将这一行中每个数都乘以
;若其中没有
且没有
,则这一行中所有数均保持不变”(
、
、
、
).
表示“将
经过
变换得到
,再将
经过
变换得到
、
,以此类推,最后将
经过
变换得到
”,记数阵
中四个数的和为
.
(1)若
,写出
经过
变换后得到的数阵
;
(2)若
,
,求
的值;
(3)对任意确定的一个数阵
,证明:
的所有可能取值的和不超过
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/118fda38f1089b957ed60695e37a536c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e84c30444f13d37ada78285dc4f83b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e76d1d8e50dda4d50229a8a20c57e58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc29ee719feeedfbc8c529cf11348abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80dfe04216139283a69617e9dad8048f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1f55a7cb35277e770cf834d0daee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e75e807cfe386ca9281b99ddf74ffc16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada32feac648a845a4df365354cd196e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c866e176c39fd314d3cd3bbe52ba8ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13457c887234afca68b4ab6be353481.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53fc303cfac1c7534451fb0789e68340.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53fc303cfac1c7534451fb0789e68340.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b081228ddb76ebe198cdb4e69f2785d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33a99190a8fd29c36d5a002e3197cc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2321ec2ceeba4ca1168f3c64bcad3da2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813ba311354d00f71d2115a560d12b56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7356ec98b600ece41f3a6b4bc26a7d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4891337ce2ce5c1f700b8824a03cd83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9721059d158853671eaf19e39769b13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/747f43f06177d471d83cda317c39d105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd8db4b168ddbcba90ac9b31d36a0432.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/221f88f10c065cf9c855369540113c9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15145fa7ce87d4730373560c26d292bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0dbb44d7459e2c69c046775664c21d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0dbb44d7459e2c69c046775664c21d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8466ad670889f417cd21e72f41628a1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85351e9d97942d0291e0c4f784a69ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7356ec98b600ece41f3a6b4bc26a7d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8d70c89336011fb7ba4006a16f0f55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f58b8408ad372250925ef59146017c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b69876a0ef00bf3844058e06443013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8466ad670889f417cd21e72f41628a1.png)
(3)对任意确定的一个数阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7356ec98b600ece41f3a6b4bc26a7d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8466ad670889f417cd21e72f41628a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edbd40e04e2a943051fa83d6e511add.png)
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2020-04-16更新
|
468次组卷
|
5卷引用:2020届北京市高考适应性测试数学试题
6 . 关于
、
的二元一次方程组
的系数行列式
的值为______ .
![](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/d9106bd80b2641650499598cae9b5b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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7 . 已知矩阵![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d8c1a4077bee8d516b4964000582d6e.png)
(1)求矩阵
的逆矩阵;
(2)求该矩阵的特征值和特征向量.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d8c1a4077bee8d516b4964000582d6e.png)
(1)求矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)求该矩阵的特征值和特征向量.
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8 . 已知矩阵
的一个特征值
所对应的一个特征向量
.
(1)求矩阵
;
(2)求矩阵
的另外一个特征值及其对应的一个特征向量.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6215eebf8b74672f6201ead4e47ba801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdfec4233214c3a729c843dee0d186db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e712332f6b8efeb37a09037174afded1.png)
(1)求矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)求矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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9 . 已知矩阵
,向量
.求向量
,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c158ff44155e18b022b851c6aea6b598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91ec9538b8a3bbc7c2ee35828e1e4854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46fd976a35474c8329558ecb6a00f691.png)
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2020-03-26更新
|
77次组卷
|
2卷引用:江苏省南通市西亭高级中学2019-2020学年高三下学期学情调研数学试题
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10 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2529bbe0a807b878a34b3deb435edd0.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f461795a1b2155ed2fe724dbf4ec6ca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2529bbe0a807b878a34b3deb435edd0.png)
您最近一年使用:0次