9-10高二·四川巴中·期末
1 . 下列命题:
①函数
在区间
上是单调递增的;
②在
中,
, 当三角形ABC的面积为
时,
;
③若
为非零向量,且
,则满足条件的向量
有无数个;
④已知
,且
,
,则
.
其中正确命题的序号为____________ . (注:把你认为正确的序号都填上)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23050a18db5bb91c3491824998603b8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f4acbe230001ea86b03440b25e8045.png)
②在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e89435b1523a275c6f9e9382acbfea44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a431c5068ba5c32af44906b40b33ce11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
④已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e592a54ea5e382967a04025dcd750bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ebb96c73c0abf240bdc3f9d1ecec7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab0f0e61713a059fc61832522acab1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/772a8dc0935bae46b2bc322bb84d47d6.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 . 已知抛物线C:
,
,过点Р的直线
交抛物线C于A,B两点,线段AB中点为
,直线
经过点D且垂直于y轴,直线
经过点
且垂直于直线
,记
,
相交于点N,下列说法正确的序号为____ .
①
;②
的斜率为
;③
;④点N在定直线
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b072ff6d1b83232bebd7d4709ffba4ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d56ab70e602f2e2e291df643ab209162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/842747ef9bfbd8893e3d7a2272a70e62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfa4e9d7d044658001c41e2ca2dfb82b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41e4234c48e25329a4f52d1f2f26e41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
您最近一年使用:0次
2023-02-22更新
|
165次组卷
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2卷引用:四川省绵阳市2022-2023学年高二上学期期末数学理科试题
名校
3 . 已知正方体
的边长为2,点E,F分别是线段
,
的中点,平面
过点
,E,F,且与正方体
形成一个截面,现有如下说法:
①截面图形是一个六边形;
②棱
与平面
的交点是
的中点;
③若点I在正方形
内(含边界位置),且
,则点
的轨迹长度为
;
④截面图形的周长为
;
则上述说法正确的命题序号为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
①截面图形是一个六边形;
②棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
③若点I在正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b724168afaee2ecddf97257180be18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/786178c4141686b703850e72f87d12ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6836c9e3e3001df21030fbda3802b15.png)
④截面图形的周长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29587f681356659028a787bffa098417.png)
则上述说法正确的命题序号为
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2021-11-06更新
|
479次组卷
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6卷引用:四川省遂宁市绿然教科院2021-2022学年高二上学期期末联考文科数学试题
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解题方法
4 . 已知三棱锥
中,
为
中点,
平面
,
,
,则下列说法中正确的序号为______ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/2052f3d8-db71-4f66-8cd5-3c74dc5dda63.png?resizew=156)
①若
为
的外心,则
;
②若
为等边三角形,则
;
③当
时,
与平面
所成角的范围为
;
④当
时,
为平面
内动点,若
平面
,则
在
内的轨迹长度为2.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e126c16032892966489053f44b9048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9b9bb0f509e6f3d30858efb217c1f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a9b8e7befcb7881c294070175b1a554.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/2052f3d8-db71-4f66-8cd5-3c74dc5dda63.png?resizew=156)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2899e607479d8d1c47d954ae9ebb7144.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfbad7ad1465d1c4c177e3321e6ed12a.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4b7b3579e3fca43ead7487c73b62c2.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eea78bf026d76f1cb9cc3dc9349a193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a75844725734f498eb983fe76cece2f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
您最近一年使用:0次
2021-09-10更新
|
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4卷引用:四川省遂宁市2021-2022学年高二上学期期末数学理科试题
名校
5 . 已知函数
,现给出下列结论:
①
有极小值,但无最小值
②
有极大值,但无最大值
③若方程
恰有一个实数根,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/838f3714bdb0228d561f12987352e2a6.png)
④若方程
恰有三个不同实数根,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e2bc35c5af964ea4a246267614e7f3.png)
其中所有正确结论的序号为_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49761088bd010a1d65425cb33564194a.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
③若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf8b79cbafa3dd8602fa3a103b5000d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/838f3714bdb0228d561f12987352e2a6.png)
④若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf8b79cbafa3dd8602fa3a103b5000d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e2bc35c5af964ea4a246267614e7f3.png)
其中所有正确结论的序号为
您最近一年使用:0次
2017-07-10更新
|
1094次组卷
|
15卷引用:四川省遂宁市2016-2017学年高二下学期期末教学水平监测数学(理)试题
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