名校
1 . 已知两条不重合的直线
,
,两个不重合的平面
,
,有下列四个命题:
①若
,
,则
;
②若
,
,且
,则
;
③若
,
,
,
,则
;
④若
,
,且
,
,则
.
其中所有正确命题的序号为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0258342fb0eff42b5d37cbe42b6c89b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/539a38ada26356d73024fb8533449c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73552465f894573a9147f9a81779b5be.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b59b1a01a6da42ff2a41e5b91ea301ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b610e3c5b3d78a5730e7f3d736ac28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0258342fb0eff42b5d37cbe42b6c89b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de666db0febae223cc4d1dc189d71ca6.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/539a38ada26356d73024fb8533449c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a042a14e1c3c915ad11544c9e1e57da9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713288c700aee0f6f797e06760466185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cebac8b06d5d3f4ffb5f365873499f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de666db0febae223cc4d1dc189d71ca6.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92c166c4d75211e5294eb440bf2a6350.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209323a7a4d015f7e570ec578c1731f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39344e476725f3fbae35f2e73377a38b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b59b1a01a6da42ff2a41e5b91ea301ad.png)
其中所有正确命题的序号为
您最近一年使用:0次
2019-05-29更新
|
1145次组卷
|
5卷引用:【区级联考】天津市和平区2018-2019学年度第二学期高三年级第三次质量调查数学(文)试题
名校
解题方法
2 . 下列说法不正确的是( )
A.甲、乙、丙三种个体按![]() |
B.设一组样本数据![]() ![]() ![]() ![]() ![]() ![]() |
C.在一个![]() ![]() ![]() |
D.已知随机变量![]() ![]() ![]() |
您最近一年使用:0次
2023-06-03更新
|
1425次组卷
|
3卷引用:天津市部分学校2023-2024学年高三下学期第一次质量调查数学试卷
名校
3 . 下列说法错误的是( )
A.线性相关系数![]() |
B.两个随机变量的线性相关性越强,则相关系数![]() ![]() |
C.在回归直线方程![]() ![]() ![]() ![]() ![]() |
D.对分类变量![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2021-08-16更新
|
753次组卷
|
4卷引用:天津市市区重点中学2022届高三下学期三模数学试题
天津市市区重点中学2022届高三下学期三模数学试题江西省南昌市第十中学2020-2021学年高二下学期第二次月考数学(文)试题(已下线)专题52:列联表独立性检验-2023届高考数学一轮复习精讲精练(新高考专用)(已下线)2023年天津高考数学真题变式题6-10