1 . 下列命题中,真命题是( )
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() ![]() |
您最近一年使用:0次
2022-11-15更新
|
63次组卷
|
2卷引用:河南省驻马店市第二高级中学2022-2023学年高三上学期第二次培优考试数学文科试题
2 . 设函数
,则“
是
为偶函数”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c182a38bd3ac000251ed665d799bae0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/019b19c64b49e010aa2d544348c6404d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2021-01-01更新
|
115次组卷
|
3卷引用:百师联盟2020-2021学年高三上学期一轮复习联考(四)全国卷 I 理科数学试题
3 . 已知圆
:
,设
:
;
:圆
上至少有
个点到直线
的距离为
,则
是
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1410414ebd007a6aebfb75240e2b458f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a2b10aea9bad4d54375c2800bb7fcde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaa58224c03dfded4a36220a0e38629a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
4 . 由实数组成的等比数列
的前
项和为
.则“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390636a89883bd64bf8da9bf8654aff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ee7be0085474817409ecfc22d59fc1.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
5 . 给出下列五个命题,其中正确命题的个数为( )
①命题“
,使得
”的否定是“
,均有
”;
②若正整数
和
满足
,则
;
③在
中 ,
是
的充要条件;
④一条光线经过点
,射在直线
上,反射后穿过点
,则入射光线所在直线的方程为
;
⑤已知
的三个零点分别为一椭圆、一双曲线、一抛物线的离心率,则
为定值.
①命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0c7a319f1fb9ef4cd6bd9eb5ab0c53b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d85685dd80e4f513558a36ccfbf21daf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264dab145ceba44696a6ee63b1e1549d.png)
②若正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7870c36161f465fc992534b5fc3777f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6448902bd5c94dbcaf6b3a89aae20af1.png)
③在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca51be437b1a97ca92aa1159ab71102c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dc38d888741a1b2e95fe0773a48c38.png)
④一条光线经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c21b59d92c33a3b451d6cc13878c45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4690597bc0883f8932494c135a11433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/355dffb42861f3e297694f4be77c694c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aed2b0a34d9f9cec15f98b83a0fd809f.png)
⑤已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f97f5d47f552229a714bf4ae2a6e29e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1e13803bbcf44b40e3f464cb18e11be.png)
A.2 | B.3 | C.4 | D.5 |
您最近一年使用:0次
6 . 已知圆
,设
;
:圆
上至多有2个点到直线
的距离为
,则
是
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946ae5de1914637f2f76e98bcf2bbdad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a422260ab8bec144ec49f312e2e8729.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32c935806559b1a913a7edb3c804999.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2020-04-29更新
|
216次组卷
|
2卷引用:2020届百师联盟高三练习题一(全国卷 II)数学(文)试题
解题方法
7 . 命题
,
,其充要条件为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50d509cbe618789d2fe913c72807af9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44b855a9f49ff2364d346556c3d6a6e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
8 . 设命题
:函数
存在极值,
:函数
在
上是增函数,则
是
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daeeb476edf4fd8d7f6ce7f8c8deb727.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9e9d271392e54ef2055c434430a8dc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.充要条件 | B.充分而不必要条件 |
C.必要而不充分条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2020-04-06更新
|
405次组卷
|
3卷引用:2020届百校联盟高三TOP300七月尖子生联考数学(理)试卷
名校
解题方法
9 . 若数列
的前
项和为
,则“
”是“数列
是等差数列”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5274adf9ab52f082fb4f8f557e701621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2020-03-15更新
|
1180次组卷
|
9卷引用:2020届全国大联考高三第三次联考数学试题
2020届全国大联考高三第三次联考数学试题湖南省长郡中学、湖南师大附中、长沙市一中联合体2020-2021学年高三上学期12月联考数学试题四川省成都市树德中学2021-2022学年高三上学期10月阶段性测试数学(文)试题四川省成都市树德中学2021-2022学年高三上学期10月阶段性测试数学(理)试题(已下线)第02讲 常用逻辑用语-2021年新高考数学一轮专题复习(新高考专版)湖北省武汉市江岸区2024届高三上学期1月调考数学试题2020届海南省全国大联考高三第三次联考数学试题安徽省六校教育研究会2021-2022学年高三上学期第一次素质测试理科数学试题(已下线)河南省南阳市2022-2023学年高二下学期期中数学试题
10 . 设向量m,n满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c6530a0fbfd64eff832dd88868bd90.png)
,现有如下命题:命题
的值可能为9;命题
“
”的充要条件为“
”;则下列命题中,真命题为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c6530a0fbfd64eff832dd88868bd90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00eeced49f96108aa614da29842cc313.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46535827a7683c88c37cf4c2be5f8fee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c651142a06e6a24d34fe95ca6004dd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3ecdf5e2ec28b83753c5a3bc473b32c.png)
A.p | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次