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1 . 已知
且
,
且
,方程组
的解为
或
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13d2bfd494199ded47d54d2ba574570f.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e30c903d8f8a05332af0b19e7e40df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be861d83cddb5fc8aa22f7f0f9415d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ce797a71acce367e385fe94eff2e17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b0fbb1e470de0423276d62f3740306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c00ee66adb608ea5c621716a86f064.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13d2bfd494199ded47d54d2ba574570f.png)
您最近一年使用:0次
2020-02-23更新
|
255次组卷
|
5卷引用:江苏省南通市海安高级中学2019-2020学年高一上学期期中数学试题(创新班)
江苏省南通市海安高级中学2019-2020学年高一上学期期中数学试题(创新班)江苏省南通市海安高级中学2019-2020学年高一上学期期中数学试题江苏省南通市如皋市第一中学2021-2022学年高一上学期10月月考数学试题第4章 指数与对数(章末测试提高卷)-2021-2022学年高一数学同步单元测试定心卷(苏教版2019必修第一册)(已下线)专题01 《指数与对数》中的典型题(1)-2021-2022学年高一数学上册同步培优训练系列(苏教版2019)
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2 . 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)
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3 . 若关于
的线性方程组增广矩阵变换为
,方程组的解为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3fa6438d73fac62ea3d535f1c1cdab.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a14c388e1e2e5a2ff1ccf6caffbee0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97465c7c2b03933de878f453d5f64d27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86d1efd0b65fb1761f46ce5e3d67ffd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3fa6438d73fac62ea3d535f1c1cdab.png)
您最近一年使用:0次
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4 . 对于三次函数
,定义:设
是函数
的导数
的导数,若方程
有实数解
,则称点
为函数
的“拐点”.任何一个三次函数都有对称中心;且‘拐点’就是对称中心.”请你将这一发现为条件,函数
,计算
=____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/012429b7101ba0f84e7b45598ed12db9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a7472816f7828f0ef6fad75b136a40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2c78cd5b4bbb9514afeec40e075eac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc2f2d45bb3d4ec767108f32a124a4a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba2934045b355fe7e8289a5a714f253f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/496283fd3b0228326a8b55a5e2b2ed85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2c78cd5b4bbb9514afeec40e075eac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71adac97d28caea79c8024fbec4c92e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4598f6872f79fdfab23f58ec248d511f.png)
您最近一年使用:0次
5 . 对于问题:“已知关于
的不等式
的解集为
,解关于
的不等式
”,给出如下一种解法:
解析:由
的解集
,得
的解集为
,即
关于
的不等式
的解集为
.
参考上述解法,若关于
的不等式
的解集为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/013423aca66eff3c633c4fa3ae387f09.png)
关于
的不等式
的解集为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5f28031b036e4a37be931d5ff28368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c7b74fd862d7e3f35e40ae1f626c4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f41563598c0fd893422c087bb3bd31e6.png)
解析:由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5f28031b036e4a37be931d5ff28368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c7b74fd862d7e3f35e40ae1f626c4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f72f833420cbaa04a29559e15329a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29f48e1c656aace41360467f254e359d.png)
关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f41563598c0fd893422c087bb3bd31e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29f48e1c656aace41360467f254e359d.png)
参考上述解法,若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b527d3a72e43cb15d69d22b406217eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/013423aca66eff3c633c4fa3ae387f09.png)
关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f4d1bc6eb7a791fcd6a990fca05f3c.png)
您最近一年使用:0次
2020-02-04更新
|
760次组卷
|
6卷引用:上海市上海中学2015-2016学年高一上学期期中数学试题
名校
6 . 已知
且对任意
,不等式
无解,当实数
取得最大值时,方程
的解得个数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ee6a07adbd93c4d2455c69e82bdf30d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77af8a15bd425cee0fd4479371bbc538.png)
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