1 . 已知矩阵
,
,则矩阵![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7641b4223fb77a9a712ff9b3ec55bc.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a3e738f9c413a0b1e3de7479b8b244d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/249b9b24f590c7dd1de8fd77cb8d5309.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7641b4223fb77a9a712ff9b3ec55bc.png)
您最近一年使用:0次
2020-04-24更新
|
81次组卷
|
2卷引用:江苏省徐州市2018-2019学年高二下学期期末理科数学试题
名校
2 . 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)
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3 . 若A和B满足
(E为单位矩阵)则称A和B互为逆矩阵.
(1)证明
是
的逆矩阵;
(2)求
的逆矩阵.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a42ea87f6ee18642425d292566966569.png)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103129361fa5ed918a22587e0d3b6f50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1a823024dbafc025391ef78e8a94183.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0777f5504877277aae0b8f5326c9a2a3.png)
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4 . 矩阵
的逆矩阵
为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eb040b412bba24b11bd9fb989dae047.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a84646168f0afc4380043a52b818c35.png)
您最近一年使用:0次
2019-07-11更新
|
116次组卷
|
2卷引用:江苏省无锡市普通高中2018-2019学年高二下学期期末数学(理)试题
名校
5 . 已知矩阵
,则矩阵
的逆矩阵为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b049d08ca65a3163ec5b8667a765a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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2018-06-30更新
|
150次组卷
|
3卷引用:【全国市级联考】江苏省宿迁市2017-2018学年高二下学期期末考试数学(理)试题
6 . 已知矩阵
,则
的逆矩阵![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9ff18043fd57f0e8b683071905e817.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0123235d0d5487231718f98079bc419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9ff18043fd57f0e8b683071905e817.png)
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7 . 已知
,
,且二阶矩阵
满足
.
(1)求
;
(2)求矩阵
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45fde6a55f8208dfd9b1f87b64a109a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60da28fefe7143ac36bc182e442deab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235c32929387d05f89c2bd960686c91a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5d7c1beea03e1dd6f5a0e12ea2b7585.png)
(2)求矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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