1 . 若增广矩阵为
的线性方程组无实数解,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16017b81c660c59b4dc84cc829af8fef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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2 . 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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3 . 已知一个关于x、y的二元一次方程组的增广矩阵是
,其解为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f8dbab483f39b65ece5680f7c039c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/203dfe536ac65ff8405862204fca6ea7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.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 . 已知二元线性方程组
有无穷多解,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f0d77cc4b77b1f9533b8b0b325a848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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2022-04-18更新
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155次组卷
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2卷引用:上海市莘庄中学2022届高三下学期线上期中数学试题
6 . 关于x、y的线性方程组
的增广矩阵是____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/989cc3f45a4c8f8a6f5d4706c7afe907.png)
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7 . 若线性方程组的增广矩阵为
,其解为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11f97294d915e1dc77f34f94abb5ebd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80ddf5c595c0eff128a9c5026642fb25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
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8 . 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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9 . 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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10 . 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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