名校
解题方法
1 . 给出下列四个命题:
①命题“
,
”的否定“
,
”;
②a,b,c是空间中的三条直线,
的充要条件是
且
;
③命题“在
中,若
,则
”;
④若“
”是假命题,则p,q都是假命题;
其中的真命题是___________ .(写出所有真命题的编号)
①命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1984a78f4fa4bb93134765a89f3735ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8645952ea14b25443f411d39bdec641e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40915f66115bb363bc9ca0c95a2bb5.png)
②a,b,c是空间中的三条直线,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72fbc714c63815dad9a27418f6492f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2293799d379200cf746e8450ebd5744f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d4fc47a5814493cc5facdc3ab296dd.png)
③命题“在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca51be437b1a97ca92aa1159ab71102c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dc38d888741a1b2e95fe0773a48c38.png)
④若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
其中的真命题是
您最近一年使用:0次
名校
2 . “直线
垂直于平面
内的所有 直线”是“
”的__ 条件.
![](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/9e380108ba2cf04e68a5a9393d2b921c.png)
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3 . 设实数
为常数,则函数
存在零点的充要条件是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2c42aaaa37462a3ba5cf56a3d5d409.png)
您最近一年使用:0次
4 . 下列命题中正确的是___________ .(填写序号)
(1)“若
,则
”的逆否命题为:“若
,则
”.(2)若命题
为真命题,命题
为假命题,则命题“
”为真命题.(3).“
”是“
”的充要条件.(4).命题“若
,则
”的否命题为:“若
,则
”.(5).抛掷一枚质地均匀骰子,“结果出现5点”的事件与“结果出现6点”的事件互为对立事件
(1)“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)
![](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/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00c1fc049a87888752174ddea4187c27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f96144368b1b5ca55648a797580f022e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34715101c66fa12ce6baf0a9c53f1672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34715101c66fa12ce6baf0a9c53f1672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
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23-24高二上·江苏·课后作业
5 . (1)若直线
,直线
,则
的充要条件为______ ;
(2)若直线
,直线
,则
的充要条件为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa4211831377655be51acaf182280085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266e3689cc366d5f0a7718ce9c20e818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdb9d8425d73a68731f30e0c0e22260.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c004caa71399373290a34d3551a73b77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ef3204c7b3fc5ba11254322f7071be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdb9d8425d73a68731f30e0c0e22260.png)
您最近一年使用:0次
23-24高二上·江苏·课后作业
6 . 两条直线的垂直
(1)若直线
,直线
,则
的充要条件为________ ;
(2)若直线
,直线
,则
的充要条件为_____________ .
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa4211831377655be51acaf182280085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266e3689cc366d5f0a7718ce9c20e818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c004caa71399373290a34d3551a73b77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ef3204c7b3fc5ba11254322f7071be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
您最近一年使用:0次
7 . 直线l平分圆
的周长的充要条件是直线l的方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
您最近一年使用:0次
解题方法
8 . 设
,
为非零向量,则“
”是“
”的___________ 条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f96995b328c9aa52c0736989a253d099.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10c4668e805d2eb7c854ec822c32868.png)
您最近一年使用:0次
名校
解题方法
9 . 命题p:
,
成立的充要条件是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e821a8227ad1fabef2c1e3e5c8999c60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902c0ba2ca26b5ac7b9ca2fd5532fa4b.png)
您最近一年使用:0次
2022-10-13更新
|
950次组卷
|
4卷引用:江西省宜春市丰城市第九中学2022-2023学年高二重点班(28、29班)上学期期末考试数学试题
10 . 已知
,则“
”是“X的密度曲线的峰值比Y的密度曲线的峰值高”的________ 条件.(填“充分不必要”、“必要不充分”、“充要”、“既不充分也不必要”之一)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/516d438d4da98431781bc4044d6aafa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a21dd661ba02b7b152a27a21873d8a.png)
您最近一年使用:0次
2022-07-15更新
|
124次组卷
|
2卷引用:黑龙江省大庆市大庆铁人中学2021-2022学年高二下学期期末数学试题