1 . 方程组
有唯一解,则
应满足的条件是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a34fd485da9b47e75ccf746a847d1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 已知
,
,
,
四个城市,它们之间的道路联结网如图所示,试用矩阵表示这四个城市组成的道路网络.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/30823086-812f-469d-ba95-20bdd4e18899.png?resizew=160)
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3 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c51b646134195e96b74961ac4c92d9.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c51b646134195e96b74961ac4c92d9.png)
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4 . 计算![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab4fd6c4a37b79c70dfeddf28513021.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab4fd6c4a37b79c70dfeddf28513021.png)
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5 .
,
满足什么条件时,关于
,
,
的方程组
有唯一解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](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/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8421716a67c328b6f82bf3a86cde0322.png)
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6 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfd4f6dbe9904da8fce7b7ed269f66a.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfd4f6dbe9904da8fce7b7ed269f66a.png)
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7 .
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9dc4db11eb3657cb5b1ea86638b5070.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9dc4db11eb3657cb5b1ea86638b5070.png)
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8 . 解关于
,
的方程组
.
![](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/956b3de9e05f2b701808cfeacb362667.png)
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9 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a974f87c0d6122aa6ec01db96aa89a1b.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a974f87c0d6122aa6ec01db96aa89a1b.png)
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10 . 关于
的矩阵
,列向量
.
(1)已知
,
,
,计算
,并指出该算式表示的意义;
(2)把反比例函数
的图象绕坐标原点逆时针旋转
,求得到曲线的方程;
(3)已知数列
,
,猜想并计算
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e16fcd8304a0a925d12b19f829ffdef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/777b1de5c57f879215e1cca147a76820.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a60302649eb940748da818199e55da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50e4fd085ee10f340a008389c4a1a80d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7656966dffb3078f7298e3c5cb7a3d8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f8bf4795ad38b3417ab4e5499df2bf.png)
(2)把反比例函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377a2333ff8c63cbdb20b882d6d5a7ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
(3)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a78a26e3eeac053424c52ab90f6a3490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa694d7b39bd011907d735372ba6874.png)
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