名校
1 . 关于
,
的二元一次方程组
的系数矩阵为( )
![](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/592aeb98827cc4974a2ad983f53d74c7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 若线性方程组的增广矩阵为
的解为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9fe114651ec816d2648e5ca40995f7.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8506d2e0306b695aa43d8014e9ff5fe1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e63ff2b4867ad1646ec7d2fdcaa9d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9fe114651ec816d2648e5ca40995f7.png)
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3 . 已知方程组
的增广矩阵为
,若方程组有无穷组解,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31463b348f21711420670df9d7d03a8.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b6b3c1201f3b6b93c91ac551169d8b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727c6955e99dd5269fdbe8e27bc14300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31463b348f21711420670df9d7d03a8.png)
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4 . 已知线性方程组的增广矩阵为
,若该线性方程组解为
,则实数a的值为____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86bc00c4234c1bcd5f87d533e7585e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876d3cc320d13b10d6676be1c68b6f2a.png)
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5 . 关于
的二元线性方程
的增广矩阵经过变换,最后得到的矩阵为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3fa6438d73fac62ea3d535f1c1cdab.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/777f2113acaeab1f50b0ee2adbe31265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0dc24b10ff49293e3d090cafd931e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3fa6438d73fac62ea3d535f1c1cdab.png)
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6 . 关于
的方程组
的增广矩阵为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72bd7153fea2591815b546236a425eed.png)
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7 . 关于x、y的二元一次方程组
的增广矩阵为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f299bae695fae97d990c3dacab478653.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 设关于
的二元一次方程组的增广矩阵为
,若
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af2d38cf365e4389c0d3f18ecfa890e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ba8a7816fa72b93afff7fcc3279222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4afe4eeac040676c0b284f177304d72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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9 . 线性方程
的增广矩阵是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9de919fd890c371a3ba62b0e3ee4eff4.png)
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10 . 线性方程组
的增广矩阵为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4c4f1b8b812ab47a03ed163dfd0b69d.png)
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