1 . 已知命题p:1<m≤2是假命题,则m的取值范围是______________ .
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2020-10-24更新
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254次组卷
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2卷引用:江苏省南京师范大学附属实验学校2020-2021学年高一上学期10月月考数学试题
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2 . 已知
,若
,则
或
”是_______ 命题(填“真”或“假”).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e68a83b4093280ea8750677f6828bf47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ed1f9fabf4186b44d29174affb4969f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561800aa679a45da4dbe0e323de1fd59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e234c3ca9dee1ae2a17638010eaf7f90.png)
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2019-11-08更新
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323次组卷
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4卷引用:上海市嘉定区2019-2020学年高一上学期期中数学试题
21-22高一上·全国·课后作业
3 . 命题
存在实数
,使得
能成为三角形的三边长.若命题
为假命题,则
的取值范围是______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9bcba2bc6c5ad47a56b239305139c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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4 . 已知真命题“
”和“
”,则“
”是“
”的_________ 条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb0478d3babe74dc1385506adc5f8a1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8974486a67ffaf15d865afc495c25cb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40c3024af66064d8668f7c856ab25e91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa5cbc01f00762fce41d9d8e7c25699.png)
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5 . 能够说明“设
,
是任意非零实数”,若“
,则
”是假命题的一组整数
,
的值依次为______ .
![](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/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb54b1b3617ebc502cb44194cbcd1dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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2020-05-13更新
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226次组卷
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2卷引用:2020届北京市石景山区高三4月统一测试数学试题
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6 . 若命题“向量
与向量
平行”是真命题,则实数
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e2d67390ba484b26ce137ecd66ad24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eedaafaafeaaf2f5b3291b76a819d60b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-02-09更新
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231次组卷
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3卷引用:安徽省阜阳市界首市2019-2020学年高二上学期期末数学(理)试题
7 .
,
,且若
则
是真命题,求实数
的取值范围是__________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3f062c1cd6097f5350f4bd6b343e6be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f02b375c980d1c92650159714d3d520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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8 . “若
、
、
不全为
,则
”的逆否命题是________ 命题.(填“真”、“假”)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87ad1416311af625004c330c5ec3b1f1.png)
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9 . 命题“若实数
、
满足
,则
或
”是________ 命题(填“真”或“假”)
![](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/c35e2165dfa1e184027dfda8376e3878.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51f5f7a36e251bbc424ccc127ebb2881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8487583e96f4e03cfa40818f8180a379.png)
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10 . 给定下列命题:①“若α=
,则tan α=1”的逆否命题;②若f(x)=cos x,则f(x)为周期函数;③“若a=b,则|a|=|b|”的逆命题;④“若xy=0,则x,y中至少有一个为零”的否命题.其中真命题的序号是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07a203d96e08717eb480e9ae4bcc35c4.png)
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