2019高三·全国·专题练习
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1 . 2016年巴西里约奥运会,在体操预赛中,有甲、乙两位队员参加.设命题p是“甲落地站稳”,q是“乙落地站稳”,则命题“至少有一位队员落地没有站稳”可表示为( )
A.(![]() ![]() | B.p∨(![]() | C.(![]() ![]() | D.p∨q |
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解题方法
2 . 已知命题
:
,命题
:
,且
是
的必要不充分条件,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ceb4b587f088e559f4ec3c75416d471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86474b8b559afef08fa4ea228f84b77e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e26b38e357c7d985656ba7bb3c794a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2018-10-12更新
|
480次组卷
|
5卷引用:【全国市级联考】河北省张家口市2017-2018学年高二下学期期末考试数学(理)试题
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3 . 已知
,
, 则
是
的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f127b2911cb6ef4caf737ad1f969c827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7bd63e1a908b652461227de4e890edb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e26b38e357c7d985656ba7bb3c794a5.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
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2018-08-26更新
|
1756次组卷
|
2卷引用:辽宁省凌源二中2017-2018学年高二下学期期末考试文数试卷
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4 . 用反证法证明命题“已知
为整数,若
不是偶数,则
都不是偶数”时,下列假设中正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
A.假设![]() | B.假设![]() |
C.假设![]() | D.假设![]() |
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5 . ①已知
,
是实数,若
,则
且
,用反证法证明时,可假设
且
;②设
为实数,
,求证
与
中至少有一个不少于
,用反证法证明时,可假设
,且
.则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eb5374855bb495fafbdace1c47e492a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/406185f4ad8bcd99e23adc8d289088ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abb74c6813d470dd2943f709d025c227.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acdd18f831934fb27cc00e4642ba7cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/637495a71588804f786b9787e8095dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65962ee028d986a30fd87206d891a154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/176b1438fbfc1855c0b5e161da854874.png)
A.①的假设正确,②的假设错误 | B.①的假设错误,②的假设正确 |
C.①与②的假设都错误 | D.①与②的假设都正确 |
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2018-05-02更新
|
410次组卷
|
3卷引用:【全国市级联考】河南省焦作市2017-2018学年高二下学期期中考试理科数学试题
6 . 已知命题
函数
是增函数,命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e24df39ffaa1e2cb4ad52479973ed0.png)
(1)写出命题
的否命题
,并求出实数
的取值范围,使得命题
为真命题;
(2)如果
是真命题,
是假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/569675dd7b2aca2732324f4bea5c02e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4250f62a97cf446c12dce5b61c914714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347761783913374a6db9f9308c475c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e24df39ffaa1e2cb4ad52479973ed0.png)
(1)写出命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859701760e76f1b0de2480da41acacaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859701760e76f1b0de2480da41acacaf.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/429d9cd4fe4a885ac06831a7b8eb3dd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ba9507faa6aaad768f19a0ebdad5a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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7 . 在一次射击训练中,某战士连续射击了两次.设命题
是“第一次射击击中目标”,
是“第二次击中目标”.则用
以及逻辑联结词
表示“两次都没有击中目标”为_______________ .
![](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/0cd5371a6f0f82c65dd22f75f8b807c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fd9b0229cb01f4f8c3a1f04b9b1064b.png)
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8 . 已知命题
,则
对应的
集合为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e984b138d5500cc3164becbc95fdeba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2016-12-04更新
|
854次组卷
|
5卷引用:2017届江西鹰潭一中高三上学期月考二数学(理)试卷
2017届江西鹰潭一中高三上学期月考二数学(理)试卷(已下线)2019高考备考一轮复习精品资料【理】专题三 简单的逻辑联结词 押题专练甘肃省庆阳市宁县二中2019届高三上学期第一次月考数学(理)试题辽宁师范大学附属中学2018-2019学年高二下学期期末数学(文)试题江西省南昌县莲塘第一中学2019-2020学年高二5月复学考试数学(文)试题
9 . 若
是
的充分不必要条件,则
是
的___________ 条件.
![](https://img.xkw.com/dksih/QBM/2016/9/8/1573008017195008/1573008023371776/STEM/e2f5a04ca4aa4480b3f50dbd31a46eba.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/9/8/1573008017195008/1573008023371776/STEM/f17c5ee2380f424e906699498896e05c.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2016/9/8/1573008017195008/1573008023371776/STEM/c8748b7cde924c0ea20d907c5d717565.png?resizew=24)
![](https://img.xkw.com/dksih/QBM/2016/9/8/1573008017195008/1573008023371776/STEM/d0f6e89bcbd94aacb28f92db96bc0fa6.png?resizew=21)
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10 . 下列说法错误的是
A.若![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() |
C.若命题![]() ![]() |
D.![]() ![]() ![]() ![]() |
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