9-10高三·福建漳州·期末
1 . 给出下列四个命题:
①抛物线
的焦点坐标为
.
②函数
在
上单调递减.
③对于任意实数
,有
,且
时,
,则
时,
.
④若命题
,使
,命题
,则命题“
”是真命题.
其中正确命题的序号为______________ .(把你认为正确的命题序号都填上)
①抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b62a460aef3370ee84bae1bae947403.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a19636395e024f3f99bcd436dd85dd.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3122d8d5d984b6488438fcfd4d3125e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3adb9ed6e85993172051f0aa8e03eae8.png)
③对于任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e0935bef57475636130d73a53a0fd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d9c89d2cd1fb46b1e71ad10227c098.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82fe5cf30f6ae30a0c3abdcd56cdf33f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db053b743c6ecbf87eb04fd8041b4c48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9728d4989ec38eed3f98fd0ab1abd798.png)
④若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee53862442f2c03abe4af095ecb6746c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf487bcad17e562acd2af561e0d37d14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c4f132ff31c53270c6ab9c0488d14af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26b48685414b0c1b187179132143c284.png)
其中正确命题的序号为
您最近一年使用:0次
名校
解题方法
2 . 如图是正方体的平面展开图.关于这个正方体,有以下判断:
①
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff65109fbe7d397800f32b47cf38a22.png)
②
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1730d35ab36060f1fffa0f5a833dad8.png)
③![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe5adc7bac57ffb00836c8a7fe4764f5.png)
④平面
平面
其中正确判断的序号是.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f09ad78d4eccd1a9c9ccd3c4af79c79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff65109fbe7d397800f32b47cf38a22.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38c1cbbbe9f9f1cb5cf834240b7e44b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1730d35ab36060f1fffa0f5a833dad8.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe5adc7bac57ffb00836c8a7fe4764f5.png)
④平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2edb6fb6bb3f93def71d8e0cf4bc2014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6610efa9507bd5e01b124297eb2e4d8.png)
A.① ③ | B.② ③ | C.① ② ④ | D.② ③ ④ |
您最近一年使用:0次
2017-03-22更新
|
499次组卷
|
2卷引用:福建省莆田第八中学2024届高三上学期第一次月考数学试题