名校
1 . 已知
,
,…,
(n为正整数)是直线
上的n个不同的点,设
,当且仅当
时,恒有
(i和j都是不大于n的正整数,且
),
.有下列命题:
①数列
是等差数列;
②
;
③点P在直线l上;
④若
是等差数列,P点坐标为
.
其中正确的命题有___________ .(填写所有正确命题的序号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/042f6277c98e108cab95992342e4bfd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d09490514476657414d8991d633c9d6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4c5b2ecf3d4a067272790f360b5d05d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b47de6409d3ff5da9560329819eba385.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9080a7449480ea117e133abce07db351.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8db49d097b26af86f50bd45d4601a9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/614dff0cb877d00d301584ccb5dbccda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b71af6590f0f369c164a054a8b63bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7575f3f157337fa0a1eb565ad49a33.png)
①数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1165edc23b5782b5942ef7e79130bb94.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/496df17ad7e5c372200aa5cdcf2e093f.png)
③点P在直线l上;
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5dc4024dd556d444a0668ebcbbe328b.png)
其中正确的命题有
您最近一年使用:0次
2022-01-21更新
|
885次组卷
|
3卷引用:上海市复兴高级中学2021-2022学年高二上学期期末数学试题
上海市复兴高级中学2021-2022学年高二上学期期末数学试题上海市松江二中2021-2022学年高二下学期期末数学试题(已下线)一轮复习适应训练卷(3)-2022年暑假高二升高三数学一轮复习适应训练卷(全国通用)
名校
2 . 已知数集
(
,
)具有性质
:对任意
、
(
),
与
两数中至少有一个属于集合
,现给出以下四个命题:①数集
具有性质
;②数集
具有性质
;③若数集
具有性质
,则
;④若数集
(
)具有性质
,则
;其中真命题有________ (填写序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a98a3d1f11a31e9ab1a3dde94c2d58d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b716ca98b7c6adfe97ab44d7efbf7806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7600d2cfbdc6146db96cc545706004f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ae331839bce8f3c14d7efd7f9d8915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3541598c0e0e6d5050c5a562515c430e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13ee542834ccbb57fcc55b1680ca9db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c301887b29583249330d46830969f296.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c34698c94b09d579ff1d13faf36c149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1bae03ee4ac75dacfb026290e4207dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d140780366be081efbd7d238941bc78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee40fc21a2a1d4eb21efbf435585202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4659533c1b756ea806c2c29527f937.png)
您最近一年使用:0次
2018-12-05更新
|
639次组卷
|
2卷引用:【市级联考】上海市七宝中学2018-2019学年高一上学期数学期中考试