名校
1 . 已知
“直线
的倾斜角
”;
“直线
的斜率
”,则
是
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0c2840171e14cc8cab666dce8b2119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc329b32ecf0f0532d09a8a21343e8cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.充分不必要条件 |
B.必要不充分条件 |
C.充要条件 |
D.既不充分也不必要条件 |
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4卷引用:2015-2016学年河北省冀州中学高二下期中理科数学A卷
2 . 下面给出的命题中:
①已知函数
,则
;
②“
”是“直线
与直线
相互垂直”的必要不充分条件;
③已知随机变量
服从正态分布
,且
,则
;
④已知
,则这两圆恰有
条公切线.
其中真命题的个数是
①已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/796f1da8a2b4c9d272ad44b1fd68200b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e1208293a6c1fa642c2553c5249f37.png)
②“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0db2c49919467a2e14540f2aabd05cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01f2082e494383c81cd6e6bab26abdc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c68e49e43e41daaf08acd26ca1ddc90.png)
③已知随机变量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b734e8f1546481e3eb4976008a045de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7dd47bfd5fc127d0593e503c0b4d6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c757ea3367594d0e5fb7a6cc4f5a73e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44b8643e25bfd7224fd166e813822146.png)
④已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b15b6855b46c76228075aad083635126.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
其中真命题的个数是
A.![]() | B.![]() | C.![]() | D.1 |
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3 . 若
,则“关于
的方程
无实根”是“
(其中
表示虚数单位)在复平面上对应的点位于第四象限”的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da989240786ef7c3e2d903f30caf59e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831c3990eff0d957ad589b6b07436d4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a452010e313924c7d80851e211ef9b41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
A.充分非必要条件 | B.必要非充分条件 | C.充要条件 | D.既非充分又非必要条件 |
您最近一年使用:0次
2016-12-04更新
|
676次组卷
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4卷引用:2015-2016学年辽宁东北育才学校高二下期中理科数学试卷
解题方法
4 . 下列正确的是_______________ ;
①已知命题p:|5x-2|>3,命题q:
>0,则
是
的必要不充分条件;
②在△ABC中,A>B是
的充分不必要条件;
③在△ABC中,
是△ABC为锐角三角形的充要条件;
④在△ABC中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c97ec04a1aa7ac6fce72d589864940a2.png)
>0是△ABC为钝角三角形的充要条件;
⑤在△ABC中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c97ec04a1aa7ac6fce72d589864940a2.png)
=![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305d5f36a9fdbc840161b36563923195.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c97ec04a1aa7ac6fce72d589864940a2.png)
是|
|=|
|的充要条件;
⑥两条直线互相平行是这两条直线斜率相等的充要条件;
①已知命题p:|5x-2|>3,命题q:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f42809aaa1d8be488924325a665fa9e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e26b38e357c7d985656ba7bb3c794a5.png)
②在△ABC中,A>B是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dc38d888741a1b2e95fe0773a48c38.png)
③在△ABC中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/166f792a201a8ff4a7c73aa5ec3aa026.png)
④在△ABC中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c97ec04a1aa7ac6fce72d589864940a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d792a2aa25763e14cc2863be3887000.png)
⑤在△ABC中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c97ec04a1aa7ac6fce72d589864940a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be64d59ac6538a0f4d79fb825e082081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305d5f36a9fdbc840161b36563923195.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c97ec04a1aa7ac6fce72d589864940a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d792a2aa25763e14cc2863be3887000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be64d59ac6538a0f4d79fb825e082081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d792a2aa25763e14cc2863be3887000.png)
⑥两条直线互相平行是这两条直线斜率相等的充要条件;
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5 . 已知数组
,
,
,
满足线性回归方程
,则“
满足线性回归方程
”是“
,
”的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/429f0d03e290d43a3b683c869a6e946d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b179ea1113562e401e7fa7a21a56fba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2537b72c74ac9482d538480c7af1fc40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e3d9139c89160c926fbb349267ce0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b033de5aee71e2ad6a00691adde820b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24c904b72b2c2c971e4d5a91d9c34b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b447ac3d1a965572c31b6e4c18d4b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c5fdaebc5dee5d66cd3a54fdf743d28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36fa3e504529f601fd6585d4d0f9954.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2016-12-04更新
|
659次组卷
|
5卷引用:2015-2016学年山西省怀仁一中高二下期中文科数学试卷
2015-2016学年山西省怀仁一中高二下期中文科数学试卷江西省红色七校(分宜中学、会昌中学等)2021届高三第二次联考数学(理)试题(已下线)专题09 成对数据的统计分析综合练习江西省南昌市第十中学2021届高三下学期第一次月考数学(理)试题(已下线)第八章 成对数据的统计分析(能力提升)B卷-2021-2022学年高二数学课后培优练(人教A版2019选择性必修第三册)
6 . “
,使
” 是“
” 成立的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/988fae63ba642d0cdbc019a8a8f21c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ebc6d04a8b6b1a05c0a283354a2e72b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6be67cbce81d7e50115e040bcd3dba2.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.即不充分也不必要条件 |
您最近一年使用:0次
7 . 对于函数
,命题“
”是“
是奇函数”的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d38feaa3d6708194d17be61f993416.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104375baf5cef5eb92cfc7cf13b80193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
A.充分非必要条件 | B.必要非充分条件 |
C.充分必要条件 | D.既非充分又非必要条件 |
您最近一年使用:0次
8 . 直线
的图像经过第一、二、四象限的一个必要而不充分条件是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac5d434ebc1298682516e99734296607.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
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9 . 已知实数
,
,则“
”是“
”的
![](https://img.xkw.com/dksih/QBM/2016/3/7/1572522616848384/1572522622156800/STEM/785e749f5da64215b1fabdf6b154421a.png)
![](https://img.xkw.com/dksih/QBM/2016/3/7/1572522616848384/1572522622156800/STEM/f4648bebc4684104b3ac70186e7880e3.png)
![](https://img.xkw.com/dksih/QBM/2016/3/7/1572522616848384/1572522622156800/STEM/c566fb8caa7e4a09bcca66683b0a4c38.png)
![](https://img.xkw.com/dksih/QBM/2016/3/7/1572522616848384/1572522622156800/STEM/d94629cb816842d0b07d1fc99c6e164f.png)
A.充分不必要条件 |
B.必要不充分条件 |
C.充要条件 |
D.既不充分也不必要条件 |
您最近一年使用:0次
2016-12-04更新
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219次组卷
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2卷引用:2015-2016学年江西省上高县二中高二上期末文科数学试卷
名校
10 . 在
中,“
”是“
”的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20befb31b8e0deb0604491ab8ab7cd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daafaab783ddadfff44be9af99f37d59.png)
A.充分非必要条件 | B.必要非充分条件 |
C.充要条件 | D.既非充分又非必要条件 |
您最近一年使用:0次
2016-12-04更新
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399次组卷
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3卷引用:2015-2016学年内蒙古赤峰二中高二上学期期末文科数学卷