13-14高三下·江苏盐城·开学考试
1 . 已知矩阵
,
(1)求逆矩阵
;(2)若矩阵
满足
,试求矩阵
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2192e8ca9aa94cc6d96e4d389559ff83.png)
(1)求逆矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a84646168f0afc4380043a52b818c35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce4466c31731e3ba4b6004316a58f199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
您最近一年使用:0次
11-12高三·上海奉贤·期末
2 . 关于
的不等式
的解集为
.
(1)求实数
的值;
(2)若实系数一元二次方程
的一个根
,求
.
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935853568/STEM/ed6dae989dd94e938ef1bd0dfc19ec01.png)
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935853568/STEM/54d5d11d11e7495e971f23d2ef0fdbee.png)
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935853568/STEM/e133617874a04daaaf8b12d1c639bacb.png)
(1)求实数
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935853568/STEM/1a757dafd454426c90aeb87777045b9b.png)
(2)若实系数一元二次方程
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935853568/STEM/b0799ebd7426433ca59d4276857c4b6a.png)
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935853568/STEM/7d501fcc9d73456182b67ce26d892856.png)
![](https://img.xkw.com/dksih/QBM/2012/1/28/1570701930340352/1570701935853568/STEM/dc2b972d7fc04f86815b1f7a38079750.png)
您最近一年使用:0次
11-12高三上·江苏常州·期中
3 . 设矩阵![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
,若矩阵
的属于特征值1的一个特征向量为
,属于特征值2的一个特征向量为
,求实数
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1573c282a149f7a464b4be0434c60eaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6dff909afce77ae52bc72f97a282f03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efa9846fcb1153a4791dee8229dd2f53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e45f0348b22edfd2c473a9185ffa33d.png)
您最近一年使用:0次