名校
1 . 下列结论:
“直线l与平面
平行”是“直线l在平面
外”的充分不必要条件;
若p:
,
,则
:
,
;
命题“设a,
,若
,则
或
”为真命题;
“
”是“函数
在
上单调递增”的充要条件.
其中所有正确结论的序号为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c512c047783c07da1d4f4455a4033ef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876959b9f90f2379cf3d0927a8e31005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bded4e08a5c75fd82f1868c9f4c5b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3719d2ca3c5877bafc18f58c1fdf4b3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4690a619a829c621fb7cd1e98df13f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbdf492b48e5da4602f2bde199deae4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3bc9e7fe40882f2f79bcf8d87a7f031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67773252101fb3704fdac88b5f3f1bda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bea9391c115618bb84a7aa3da8a242d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60dbdf0c087ab6be44595a5ca285acbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd594e99f82b7736c44e18b2721e607f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10baec9d907f3ccb3f64ad3de53a589d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74269cfb503e736149e1ac3165fcbafa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89e1ee3b8e2751f354aa5ab7135c75b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b3de9d6894829d7de515544cd6cd2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8fe868d4152f599a9ae5a0dae150cb0.png)
其中所有正确结论的序号为
您最近一年使用:0次
2019-03-18更新
|
638次组卷
|
3卷引用:甘肃省平凉市静宁县第一中学2019-2020学年高二上学期期中数学(文)试题
13-14高二上·河北衡水·阶段练习
名校
2 . 已知
,
方程
表示双曲线,则
是
的__________ 条件(填“充分不必要”、“必要不充分”、“充要”、“既不充分也不必要”)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b2683e7e6c2ff0d2ccba15508f93ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caebb42008d8677c8d3fb0c4e6659cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
您最近一年使用:0次
2019-01-30更新
|
1288次组卷
|
4卷引用:2015-2016学年内蒙古巴彦淖尔一中高二上期中理科数学卷
2015-2016学年内蒙古巴彦淖尔一中高二上期中理科数学卷(已下线)2013-2014学年河北衡水中学高二上第四次调研考试文数学卷黑龙江省大庆市铁人中学2019-2020学年高二上学期10月月考数学(文)试题四川省宜宾市叙州区第一中学校2019-2020学年高二下学期第四学月考试数学(文)试题
解题方法
3 . 以下给出五个命题,其中真命题的序号为_______
①函数
在区间
上存在一个零点,则
的取值范围是
或
;
②“
”是“
成等比数列”的充分不必要条件;
③
;
④若
,则
;
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73236e2eab009f8283a1357c24afb6a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06eb266127414464d516aea16da5473d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3002ad1638f25e355d70d5ab63e637f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2e66b0aa8972c797c9f3ddccdd4fdd5.png)
②“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/988b7e964e313579ab8869d67d5be007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9720430f7a78087a509e5ae5b764442.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386a8afb81a41fe2204242575ea39cab.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1b5f665d41a2d0e4980b35c1b6e578.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c855dfd821bdda47ea3acdd3bac48e0.png)
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4 . 给出如下四个命题:
①若“
或
”为真命题,则
、
均为真命题;
②命题“若
且
,则
”的否命题为“若
且
,则
”;
③在
中,“
”是“
”的充要条件;
④已知条件
,条件
,若
是
的充分不必要条件,则
的取值范围是
;
其中正确的命题的是________ .
①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)
②命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0935b0d5568370418871fa7a6c47162d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a583e1950f97c1c88fc322421fd1dfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b1357a1cd93564d4c40b96c94b17382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4c7a19e1029af85500bcff59d976b4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d634ea3ee84dca7c5b59f77d77464ee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03e906994b4ed24e674e82ecaac96cbe.png)
③在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a0631f6fc44eae7a0e369206d33d3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d236e7315396d77ee666880edd1bef49.png)
④已知条件
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bd20b689abff23a3250eb431ef5fadd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/225a665274b7665c20969f4763f49fdb.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/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a99dea51cfb628626a175c0ab9604fec.png)
其中正确的命题的是
您最近一年使用:0次
2019-01-30更新
|
825次组卷
|
2卷引用:2015-2016学年湖北武汉二中高二上学期期中文科数学试卷
名校
5 . 给出下列四个命题中:
①命题“若x≥2且y≥3,则x+y≥5”为假命题.
②命题“若x2-4x+3=0,则x=3”的逆否命题为:“若x≠3,则x2-4x+3≠0”.
③“x>1”是“|x|>0”的充分不必要条件
④关于x的不等式|x+1|+|x-3|≥m的解集为R,则m≤4.
其中所有正确命题的序号是______ .
①命题“若x≥2且y≥3,则x+y≥5”为假命题.
②命题“若x2-4x+3=0,则x=3”的逆否命题为:“若x≠3,则x2-4x+3≠0”.
③“x>1”是“|x|>0”的充分不必要条件
④关于x的不等式|x+1|+|x-3|≥m的解集为R,则m≤4.
其中所有正确命题的序号是
您最近一年使用:0次
名校
6 . “
”是“
”的________ 条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be84cc9fe2ee7edaa012660fda622d26.png)
您最近一年使用:0次
2018-12-04更新
|
642次组卷
|
2卷引用:【全国百强校】江苏省如东中学2019届高三年级第二次学情测试数学试题
7 . 设
R,则
是
的______ 条件(填“充分不必要”,“必要不充分”,“充要”,“既不充分也不必要”).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e44c45ef0334070fc149b452dee26ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87fa9f5911e5db528fb9c7670603757a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c34f7fa8ec7ce4a8e99e8ea19d5e687.png)
您最近一年使用:0次
8 . 设函数
,则k=﹣1是函数
为奇函数的_______ 条件(选填“充分不必要、必要不充分、既不充分又不必要、充要”之一)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b1ae0b21f72a9935e7f6ea3e479f22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
名校
9 . “1<x<2”是“x<2”成立的______________ 条件.(填“充分不必要”、“必要不充分”、“充要”、“既不充分也不必要”).
您最近一年使用:0次
2018-09-12更新
|
688次组卷
|
3卷引用:北京师范大学第二附属中学2019-2020学年高一年级上学期期中数学试题
名校
10 . 下列几个命题
①方程
有一个正实根,一个负实根,则
;
②函数
是偶函数,但不是奇函数;
③命题“若
,则
”的否命题为“若
,则
”;
④命题“
,使得
”的否定是“
,都有
”;
⑤“
”是“
”的充分不必要条件.
正确的是__________ .
①方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dc5a53f9ab2eed437533f5eb9a625bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0380550906059d443550edce4d3c79a1.png)
③命题“若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6749db809dd84c2cfe5c47bea121e356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6749db809dd84c2cfe5c47bea121e356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a79d7f73b6128650bf7aed538260c72.png)
④命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8645952ea14b25443f411d39bdec641e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264dab145ceba44696a6ee63b1e1549d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1c77d129b56255baf3d76eb2a6c2ff.png)
⑤“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc810219a7939cee63c092914567ce14.png)
正确的是
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