2011·辽宁沈阳·模拟预测
1 . 已知命题
:
命题
:
则下列判断正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01aaae33f4845e2d9dd8d8ecd819669b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/523a245693d1caa619c9c26d26228570.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . 写出命题“若
,则
且
”的逆命题、否命题、逆否命题,并判断它们的真假.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a8a2a94168af9b16ce89271a5d8dc6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e30c903d8f8a05332af0b19e7e40df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d09b9fc9719ff6faf32254b9d48713.png)
您最近一年使用:0次
2017-05-02更新
|
1207次组卷
|
3卷引用:安徽省铜陵市第一中学2016-2017学年高二下学期期中考试数学(文)试题
9-10高二下·四川·阶段练习
3 . 、下面有五个命题:
①函数y=sin4x-cos4x的最小正周期是
. ②终边在y轴上的角的集合是{a|a=
|.
③在同一坐标系中,函数y=sinx的图象和函数y=x的图象有三个公共点.
④把函数![](https://img.xkw.com/dksih/QBM/2012/9/7/1571003848302592/1571003853651968/STEM/4e0a80f68c0b4fee9222987e455ed236.png?resizew=393)
⑤函数
.其中真命题的序号是__________ (写出所有)
①函数y=sin4x-cos4x的最小正周期是
![](https://img.xkw.com/dksih/QBM/2012/9/7/1571003848302592/1571003853651968/STEM/19bb372bce784e73a333e4f0a68af3d8.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2012/9/7/1571003848302592/1571003853651968/STEM/fc3cb1c23dcf4a609a344378e195eb82.png?resizew=67)
③在同一坐标系中,函数y=sinx的图象和函数y=x的图象有三个公共点.
④把函数
![](https://img.xkw.com/dksih/QBM/2012/9/7/1571003848302592/1571003853651968/STEM/4e0a80f68c0b4fee9222987e455ed236.png?resizew=393)
⑤函数
![](https://img.xkw.com/dksih/QBM/2012/9/7/1571003848302592/1571003853651968/STEM/48ee0e7e2f5048ef9ff5c79b7c22ac7b.png?resizew=253)
您最近一年使用:0次
4 . 命题“若
,则
”的逆否命题是
![](https://img.xkw.com/dksih/QBM/2016/12/29/1619435168735232/1619435168940032/STEM/39309555b37f42c4b3055cd230533d72.png)
![](https://img.xkw.com/dksih/QBM/2016/12/29/1619435168735232/1619435168940032/STEM/f14a6e93063944cc93fc0019838dc232.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
您最近一年使用:0次
5 . 如图,边长为
的等边三角形
的中线
与中位线
交于
,已知
(
面
)是
绕
旋转过程中的一个图形,有下列命题:
![](https://img.xkw.com/dksih/QBM/2016/8/4/1572960224698368/1572960230834176/STEM/0cfe1c7ed8fa4ee6b8a031e142ca8b1d.png)
①平面
平面
;
②
面
;
③三棱锥
的体积最大值为
;
④动点
在平面
上的射影在线段
上;
⑤二面角
的平面角的取值范围是
.
其中正确的命题是 (写出所有正确命题的编号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1f5435a4f8c5a50d552333c3fc81ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c10d424fb095086796db2a1cb4118b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a7d5cf4f2bf91fe0f7a99f2ba358c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/2016/8/4/1572960224698368/1572960230834176/STEM/0cfe1c7ed8fa4ee6b8a031e142ca8b1d.png)
①平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a469fa442cbec1a72a977f6315bf20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3d909c03622abf13fc5095981e6022.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c9fe79fc4f98b48b836198dfb3b0337.png)
③三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5546e20d029a8ffbe8270bb1ea8e6540.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8e5a08df74a401d57e5793bbfbe256b.png)
④动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25fba8c7f5406607c1a76c166682a99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
⑤二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb4168f76bf73343225a3d27ea2a734e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a3ec6649983923940108d2092ec41e.png)
其中正确的命题是 (写出所有正确命题的编号).
您最近一年使用:0次
6 . 命题“若
,则
”的逆否命题是
![](https://img.xkw.com/dksih/QBM/2016/3/21/1572551451787264/1572551457480704/STEM/ba1710b6536544ee81ce546270518053.png)
![](https://img.xkw.com/dksih/QBM/2016/3/21/1572551451787264/1572551457480704/STEM/10d3102df8464211b8a5a8b86edb900b.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次
7 . 下列命题正确的是
A.若![]() ![]() ![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.命题![]() ![]() ![]() ![]() |
D.命题“若![]() ![]() ![]() ![]() |
您最近一年使用:0次
8 . 命题“如果
都是奇数,那么
是偶数”的逆否命题是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
您最近一年使用:0次
9 . 用符号表示小于
的最大整数,如
,有下列命题:①若函数
,则
的值域为
;②若
,则方程
有三个根;③若数列
是等差数列,则数列
也是等差数列;④若
,则
的概率为
.
您最近一年使用:0次
2016-12-01更新
|
1329次组卷
|
6卷引用:2012届上海市七宝中学高三模拟考试理科数学
(已下线)2012届上海市七宝中学高三模拟考试理科数学2016届上海市七宝中学高三模拟理科数学试卷2016届上海市七宝中学高三模拟考试数学(理)试卷2016届上海市高考最后冲刺模拟(一)(文)数学试题2016届上海市闵行区七宝中学高三下学期适应性考试(三模)(理)数学试题(已下线)压轴题高等数学背景下新定义题(九省联考第19题模式)练
10 . 命题“数列
前
项和是
的形式,则数列
为等差数列”的逆命题,否命题,逆否命题这三个命题中,真命题的个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a3250c1ce52b36c7a1e0a3e93432e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次