名校
1 . 已知直线
:
,
:
,分别求实数
满足什么条件时,直线
与
相交?平行?重合?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259d2872f99edd33cb86606f893dda7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2420fa00946ed936cd1a650c77a56f4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
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2 . 利用行列式解关于
、
的二元一次方程组
.
![](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/aed6963da4f27a60cdbc7e90b25089b1.png)
您最近一年使用:0次
名校
3 . 用行列式方法解关于
的方程组:
,并对解的情况进行讨论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e647c14561826ba9e396acc5a3792c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd2b387b208b7a99fb47b3310d66bdcc.png)
您最近一年使用:0次
4 . 已知方程组![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267ad467cfcbcc2dff5b77665f13a8e2.png)
(1)求证:方程组恰有一解;
(2)求证:以方程的解
为坐标的点在一条直线上;
(3)求
的最小值,并求此时a的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267ad467cfcbcc2dff5b77665f13a8e2.png)
(1)求证:方程组恰有一解;
(2)求证:以方程的解
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dbd4d32dcc1445563887de5d3ab7fb7.png)
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5 . 利用行列式讨论关于
的方程组
解的情况.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15d0c202945e7a40e49ba256d7f60b34.png)
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名校
6 . 已知二元一次方程组
的增广矩阵为
,则方程组的解为_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f91fa78432d1a129cff2637c9bea7733.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f68a73eb3d5f4823677856c7d71718.png)
您最近一年使用:0次
7 .
,
,
,如果
、
、
三点共线,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188432484e5072404b3b4d0791edf35d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49a31f8e8dba418bd5d886998ef8d17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2f117dc9adcb8fa7acf25bd2cbf283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 对二元一次方程组
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65bd6cdc598a67059dc4293a1694dc0.png)
A.若![]() | B.若![]() |
C.若![]() | D.若![]() |
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9 . 在
中,
,
,
成等差数列,则方程组
解的情况是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3df29d301125892d283552c90447762.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe46a742f846286f5a74e3b9f46c23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7257bd10177a1d98a6e0c3828843894e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc727271932b548fa400644703f924d6.png)
A.唯一解 | B.无解 | C.无穷多解 | D.3解 |
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10 . 已知线性方程组
.
写出方程组的系数矩阵和增广矩阵;
运用矩阵变换求解方程组.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df35a190a9bff0ac17d78a47fdd2aeb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
您最近一年使用:0次
2019-11-11更新
|
75次组卷
|
2卷引用:上海市浦东新区2018-2019学年高二上学期期中数学试题