名校
1 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/677d655a8bd1d0cf0e814eab9ed6363f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/677d655a8bd1d0cf0e814eab9ed6363f.png)
A.2 | B.6 | C.10 | D.8 |
您最近一年使用:0次
2017-04-06更新
|
402次组卷
|
2卷引用:2016-2017学年重庆市第一中学高二3月月考数学(理)试卷
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 |
您最近一年使用:0次
13-14高二下·重庆·期中
3 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c88d259b198820d45f06ad98ad677960.png)
________ (用数字作答).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c88d259b198820d45f06ad98ad677960.png)
您最近一年使用:0次
2014·福建漳州·一模
名校
4 .
=_________ .
![](https://img.xkw.com/dksih/QBM/2014/4/24/1571648975945728/1571648981499904/STEM/c1a86905e791493d85daf64f627af290.png?resizew=41)
您最近一年使用:0次
12-13高二下·重庆·阶段练习
名校
5 . 已知积分
,则实数k=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c047f9d76e77fd766c6642bee25818ba.png)
A.2 | B.-2 |
C.1 | D.-1 |
您最近一年使用:0次
2016-12-02更新
|
1313次组卷
|
5卷引用:2012-2013学年重庆市重庆一中高二4月月考理科数学试卷