名校
1 . 设有下面四个命题,
:若
是锐角,则
,
:若
,则
是锐角,
:若
,则
,
:若
,则
其中真命题为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be646cd52d7f2f1714e7542e75810f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39913ec6800fb94cb7721ba1db21697c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adad9633b73dfbbb3d84b4f15979e99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39913ec6800fb94cb7721ba1db21697c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b21b872313f7d8c5b606981f954a1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b7ae7d2b1dafd0079b3b9f317555870.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39913ec6800fb94cb7721ba1db21697c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc119550ce4fc5f3d1daf996e7243bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca371b1b99b9830359042a33910e0bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b7ae7d2b1dafd0079b3b9f317555870.png)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2018-01-07更新
|
346次组卷
|
4卷引用:河南省三门峡市2019-2020学年高三上学期11月月考数学(文)试题
2011·安徽宿州·一模
名校
2 . 关于下列命题:
①若函数
的定义域是
,则它的值域是
;
② 若函数
的定义域是
,则它的值域是
;
③若函数
的值域是
,则它的定义域一定是
;
④若函数
的值域是
,则它的定义域是
.
其中不正确的命题的序号是_____________( 注:把你认为不正确的命题的序号都填上).
①若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b161347f6a2fcfd9bf0acf1e8a03fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac1dcb9bb9b0ed9f30a96e15b3d5329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a3a8c96b28034f43727219dd080c96e.png)
② 若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f42b2a9736c8943106472a7398d2892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aed2387e92e094c01af303e26ccb8b0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07e5486b62195f2a7555e9819bc159a.png)
③若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fbdf64e4a13b6584c482f4495cf3345.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c786d40432ab180ee1e1f8cdd79113.png)
④若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc5bbf1426b9fa7c4d49659797ef34ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351c90c545df4ea671497eb70215cbe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a566d1ab6cccca5d337abdcf27416a88.png)
其中不正确的命题的序号是_____________( 注:把你认为不正确的命题的序号都填上).
您最近一年使用:0次
2016-12-01更新
|
1225次组卷
|
4卷引用:河南省三门峡市灵宝市实验高级中学2018-2019学年高一上学期期中数学试题
河南省三门峡市灵宝市实验高级中学2018-2019学年高一上学期期中数学试题(已下线)2012届安徽省泗县双语中学高三摸底考试理科数学湖南省长沙市雅礼书院中学2018-2019学年高一下学期期中数学试题云南省昆明市黄冈实验学校2019-2020学年高一上学期模块能力测试数学试题