名校
解题方法
1 . 复数
满足
,①
;②
;③复数
的虚部为
;④
是方程
在复数范围内的一个解.则以上四个结论中正确序号为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c5bf0ee9e45490fb6503cc88f58d9ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/145e6e8cb3f167d16cdeabd3bd17ca12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a369d595329752492349210d55544d2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/396df1e2e35bf3040082cbb783314e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/467354a996bf765789a18542f1beb008.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48fc19c302085de8a90e2827c32f15e7.png)
您最近一年使用:0次
2022-07-01更新
|
324次组卷
|
2卷引用:天津市西青区2020-2021学年高一下学期期末数学试题
名校
2 . 设
,
为不重合的平面,
,
为不重合的直线,则其中正确命题的序号为( )
①
,
,则
;
②
,
,
,则
;
③
,
,
,则
;
④
,
,
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a4c549e7ea8776ec821c467bc1a913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384a65ca1ee3d7d86b988ca34c885e18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc01d7aa51bf4f95c4b12ae9dcb7eb4c.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/539a38ada26356d73024fb8533449c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209323a7a4d015f7e570ec578c1731f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384a65ca1ee3d7d86b988ca34c885e18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80645381feb9746cc149da61d553974a.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe920cd78db25f5b4df37d066e57800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53cd751c44ad4d9ebd8e3243e751321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b6e422b2e6f6dada4d8c369559a077.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/209323a7a4d015f7e570ec578c1731f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe920cd78db25f5b4df37d066e57800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80645381feb9746cc149da61d553974a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
A.①③ | B.②③ | C.②④ | D.③④ |
您最近一年使用:0次
2021-09-11更新
|
1636次组卷
|
7卷引用:天津市四校联考2020-2021学年高一下学期期末数学试题
解题方法
3 . 有下列命题:
①当
,且
时,函数
的图象恒过定点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
②
;
③幂函数
在
上单调递减;
④已知
,
,则
的最大值为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
其中正确命题的序号为______ (把正确的答案都填上)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/624d044562db3ec39899fbdf2bc4c597.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc6edae66c45841732239fbc5d3cda88.png)
③幂函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd988a227f0bf3744b361558acc4ea8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
④已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3b744c4d7fbaf13e1d4789204f5dae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
其中正确命题的序号为
您最近一年使用:0次
2021-01-20更新
|
340次组卷
|
2卷引用:天津市部分区2020-2021学年高一上学期期末练习数学试题
名校
解题方法
4 .
是两个不同的平面,
是两条不同的直线,有下列四个命题:
①如果
,那么
;
②如果
,那么
;
③如果
,
,那么
;
④如果
内有不共线的三个点到
的距离相等,那么
.
其中正确命题的序号为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/474929dd8e89d9ce37448ae72b48d04f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16aa323ccb28eaa626ec7e5020a9ef82.png)
①如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e39e7026b2082c6a3acbf0496e238d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d6ca6fed060a95127579051f7a6b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5986f2991d45fbf3578f08f27d9fd7e.png)
②如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/173955b6903feb4d50c72bd9777be967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384a65ca1ee3d7d86b988ca34c885e18.png)
③如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384a65ca1ee3d7d86b988ca34c885e18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/539a38ada26356d73024fb8533449c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc01d7aa51bf4f95c4b12ae9dcb7eb4c.png)
④如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384a65ca1ee3d7d86b988ca34c885e18.png)
其中正确命题的序号为( )
A.②③ | B.①④ | C.①②③ | D.①②④ |
您最近一年使用:0次
2018-05-14更新
|
714次组卷
|
2卷引用:【全国百强校】天津市静海县第一中学2017-2018学年高一下学期期中考试数学试题
解题方法
5 . 已知平面向量
,下列说法中:
①
;②
;③向量
与
的夹角为
;④向量
在
上的投影向量为
,
正确说法的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aab5c8b113202ecc3944500fe5e324b.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a706c0068d39e0dc168c3c4f3b84da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3714ae4035d7a651ffcbb98b01978837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed492f7b29166ba5c1f0023b05a439c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed492f7b29166ba5c1f0023b05a439c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2efe36b7c93fbd8dc63d5d1be81b8250.png)
正确说法的序号是( )
A.①② | B.①③ | C.②③ | D.②④ |
您最近一年使用:0次
2022-11-10更新
|
531次组卷
|
2卷引用:天津市朱唐庄中学2022-2023学年高一下学期3月阶段性测试数学试题
6 . 下列说法中
①命题“已知
,若
,则
或
”是真命题;
②命题“若
,则
”的否命题为“若
,则
”;
③若
,则
;
④命题“
”的否定为“
”.
正确说法的序号是___________ .
①命题“已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34982de5d3f287cd570ea30eb46d185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d09b9fc9719ff6faf32254b9d48713.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1be861d83cddb5fc8aa22f7f0f9415d6.png)
②命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1c561b81538ea38deab13478911b89.png)
④命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d2292108bfdd8c5e83be13e85d4d057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24044551b3704214531eb0fb1ba41ce1.png)
正确说法的序号是
您最近一年使用:0次
2018-01-22更新
|
401次组卷
|
3卷引用:天津市河东区2021-2022学年高一上学期期中数学试题
7 . 有以下判断:①
与
表示同一函数;②函数
的图象与直线
的交点最多有1个;③
与
是同一函数;④若
,则
.其中正确判断的序号是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68af49a6c0839e9b8a1e35b44fbc437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d4f4e7b93e0162a9f61e96ed588874a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7c7debdf9905b44ff41d808a09d1ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183fa7f80a2e540194a98a4d984fec63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47b865f26068dececc1f1040e1b5cc22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a950e2c38979275b031d3e7e003b1df.png)
您最近一年使用:0次