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1 . 下列说法中正确的是( )
A.“若![]() ![]() |
B.对于命题![]() ![]() ![]() ![]() ![]() ![]() |
C.命题“已知![]() ![]() ![]() ![]() |
D.“![]() ![]() |
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2020-11-14更新
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1451次组卷
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10卷引用:甘肃省白银市第十中学2020-2021学年高二12月月考数学(理)试题
甘肃省白银市第十中学2020-2021学年高二12月月考数学(理)试题江西省九江市修水县第一中学2020-2021学年高二上学期第二次段考数学(文)试题黑龙江省哈尔滨市第九中学2020-2021学年高二下学期期末考试文科数学试题河南省濮阳市第一高级中学2021-2022学年高二上学期期中质量检测数学(理)试题宁夏回族自治区银川一中2021-2022学年高二下学期期中考试数学(文)试题安徽省六安市第一中学2020-2021学年高三上学期第二次月考数学(理)试题(已下线)专题03 常用逻辑用语(客观题)-2021年高考数学(文)二轮复习热点题型精选精练(已下线)专题03 常用逻辑用语(客观题)-2021年高考数学(理)二轮复习热点题型精选精练(已下线)专题03 常用逻辑用语(客观题)-2021年高考数学二轮复习热点题型精选精练(新高考地区专用)(已下线)专题9.2 期中押题检测卷(考试范围:第1-4章)2(中)-【满分计划】2021-2022学年高一数学阶段性复习测试卷(苏教版2019必修第一册)
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2 . 已知
,命题
对
,不等式
恒成立;命题
,使得
成立.
(1)若
为真命题,求
的取值范围;
(2)若命题
和命题
有且仅有一个为真,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561acf30b972f1f0039b0c4a090913b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7325bb368de012fac49eaa50932c289f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b59677f0e723573b21ec21792232468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1849288852f71c2d0db8f4b6748eba3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若命题
![](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/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-10-13更新
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205次组卷
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4卷引用:甘肃省张掖市2020-2021学年高二上学期期末数学(文)试题
甘肃省张掖市2020-2021学年高二上学期期末数学(文)试题(已下线)1.1 命题及其关系基础练-2021-2022学年高二数学同步训练精选新题汇编(人教A版选修2-1)江苏省扬州大学附中东部分校2020-2021学年高一上学期第一次月考数学试题安徽省黄山市屯溪第一中学2023-2024学年高一上学期10月月考数学试题
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3 . 下列说法正确的是__ .
(1)对于命题
,使得
,则
,均有
;
(2)“
”是“
”的充分不必要条件;
(3)命题“若
,则
”的逆否命题为:“若
,则
”;
(4)若
为假命题,则
,
均为假命题.
(1)对于命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fbaf82fe2b22d44492a001a7a02466c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1464643c24dbc008f158ca95bf845e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19cd44731d509352f907c9773a42cab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092e1a7037ae242571c28ee71ac50b15.png)
(2)“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fdf7d28b97fb6fe731703f80e122ed.png)
(3)命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fdf7d28b97fb6fe731703f80e122ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e30c903d8f8a05332af0b19e7e40df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a8a2a94168af9b16ce89271a5d8dc6b.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
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2020-09-12更新
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407次组卷
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5卷引用:甘肃省白银市会宁县第二中学2019--2020学年度第二学期高二期末数学试题
4 . 给出下列命题:
①纯虚数z的共轭复数是
;
②若
,则
;
③若
,则
与
互为共轭复数;
④若
,则
与
互为共轭复数.
其中正确命题的序号是_________ .
①纯虚数z的共轭复数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b2c0b7e9d2782622f8d9b8b4112a55.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eef84620e3e7b990e9736d27ec8442db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13d477ec252f1952efd7d97425bf40c.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99cbc872a716e6ff5d0b55c4e9a55a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa224ed9be8766a4d0b5138bd57de0f0.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eef84620e3e7b990e9736d27ec8442db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af68f652b4c13657ffddf3c9e7eb262b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2543268777eb18afe34a4994fbca6d.png)
其中正确命题的序号是
您最近一年使用:0次
2020-05-16更新
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323次组卷
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3卷引用:甘肃省庆阳市宁县第二中学2019-2020高二下学期4月线上测试数学(文)试卷
甘肃省庆阳市宁县第二中学2019-2020高二下学期4月线上测试数学(文)试卷沪教版(2020) 必修第二册 同步跟踪练习 第9章 9.1复数及其四则运算 2 复数的实部、虚部与共轭(已下线)10.1.2复数的几何意义-同步精品课堂(人教B版2019必修第四册)
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5 . 下面说法正确的是( )
A.命题“若![]() ![]() |
B.实数![]() ![]() |
C.设![]() ![]() ![]() ![]() |
D.命题“![]() ![]() ![]() ![]() |
您最近一年使用:0次
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解题方法
6 . 已知命题
:函数
在
上单调递增;命题
:函数
在
上单调递减.
(Ⅰ)若
是真命题,求实数
的取值范围;
(Ⅱ)若
或
为真命题,
且
为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/202bf1d9cb724a7db5055fd538390d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2b2e67cd10ebbced3d964ab0dc5c298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d863101e1d5cbba00d8e0dba69a846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c880a292e77ec85d531c1b37e6feffe6.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)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/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-04-06更新
|
639次组卷
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4卷引用:甘肃省张掖市山丹县第一中学2019-2020学年高二下学期期中考试数学(文)试题
7 . 已知命题
:指数函数
是
上的增函数,命题
:方程
表示双曲线.
(1)若命题
为真命题,求实数
的取值范围;
(2)若命题“
”为真命题,“
”为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a96335650b22e1fb751aa6654486b529.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/908b7805149759b3757f06495711bdb2.png)
(1)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-03-24更新
|
575次组卷
|
2卷引用:甘肃省张掖市2019-2020学年高二上学期期末数学(理科)试题
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8 . 给出下列五个命题:
①直线
平行于平面
内的一条直线,则
;
②若
是锐角三角形,则
;
③已知
是等差数列
的前
项和,若
,则
;
④当
时,不等式
恒成立,则实数
的取值范围为
.
其中正确命题的序号为___________ .
①直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87446a7f3d8663e3fa62157adcbe2835.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30c77720b8b287e64c5e840dcc8db528.png)
③已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](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/effdf8cadd1a54cb5e0f3a621dd4ea80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a68405af59395b5b557581b32f97a5ca.png)
④当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1864b98153200f5929787295de2c1e38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e9bd06dbb60db9ef56db0d694505330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b06647930e162809da06a1a72b9d9f.png)
其中正确命题的序号为
您最近一年使用:0次
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9 . 设有两个命题:
的解集为R;q:函数
是减函数,若这两个命题中有且只有一个是真命题,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fc6d0e17a9b138da0ed1ca0d5e09509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31aa7cb1ff170dbb75b408810f8a3528.png)
您最近一年使用:0次
2020-03-22更新
|
173次组卷
|
3卷引用:甘肃省金昌市永昌四中2019-2020学年高二上学期期末考试数学(理)试题
10 . 给出如下四种说法:
①四个实数
依次成等比数列的必要而不充分条件是
.
②命题“若
且
,则
”为假命题.
③若
为假命题,则
均为假命题.
④若数列
的前项n和
,则该数列的通项公式
.
其中正确说法的序号为________ .
①四个实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d10449bc77d692a7270e0f20a68cdf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd68c14adb3cf12d8f77aec55a053284.png)
②命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee18d7a40f7a7e0dc85b1bd75bf750c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a583e1950f97c1c88fc322421fd1dfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efe748266e2c04f5a887947312199e8c.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cd5371a6f0f82c65dd22f75f8b807c1.png)
④若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c8a478678a8db5e26aa9eff0298a2b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032ee491b2830e8427c307ddce4e607b.png)
其中正确说法的序号为
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