1 . 填空:
(1)设抛物线
上一点P到y轴的距离是4,则点P到该抛物线焦点的距离为___________ ;
(2)设抛物线
上一点M到焦点的距离为1,则点M的坐标为___________ .
(1)设抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
(2)设抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b1183df9f26985febdc844cda75ed4c.png)
您最近一年使用:0次
21-22高二·全国·课后作业
2 . 如果
,
,
三点在同一直线上,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
__________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3622dd4bc99cf4dd11c3e343971c8493.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/968c51805bd90038ef8224d4a12cdbd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1bfff7bceabe209e26547e8dd73d01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
您最近一年使用:0次
2022-03-08更新
|
643次组卷
|
6卷引用:复习题三1
(已下线)复习题三1(已下线)第05讲 空间向量及其应用 (讲)-3(已下线)第3讲 空间向量及其运算的坐标表示 (2)人教B版(2019) 选修第一册 北京名校同步练习册 第一章 空间向量与立体几何 1.2空间向量在立体几何中的应用 1.2.1空间中的点、直线与空间向量(已下线)第06讲 空间向量及其运算的坐标表示 (2)北师大版(2019)选择性必修第一册课本习题第三章复习题
21-22高二·全国·课后作业
3 . 已知某离散型随机变量
的均值
,
的分布列如下表:
则
______ ,
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b734e8f1546481e3eb4976008a045de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d123c644bdc3953e33d9fb6b9580da94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b734e8f1546481e3eb4976008a045de.png)
0 | 1 | 2 | 3 | |
P | a | b |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
您最近一年使用:0次
2022-03-08更新
|
132次组卷
|
3卷引用:3.1 离散型随机变量的均值
4 . 袋中有3个黑球和2个白球,这5个球除颜色外完全相同.每次从中取出一球,取后放回.设事件A表示“第一次取出白球”,事件B表示“第二次取出白球”,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa7ee0d808403ebf197eaf6d2dd453c.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db077a1a58c3cb4fef4486941fbd85aa.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa7ee0d808403ebf197eaf6d2dd453c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db077a1a58c3cb4fef4486941fbd85aa.png)
您最近一年使用:0次
2022-03-08更新
|
173次组卷
|
3卷引用:1.2 乘法公式与事件的独立性
21-22高二·全国·课后作业
5 . 连续抛掷一枚均匀的骰子两次,观察每次掷出的点数.设事件A表示“第二次掷出的点数为1”,事件B表示“第二次掷出的点数比第一次的小1”,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa7ee0d808403ebf197eaf6d2dd453c.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db077a1a58c3cb4fef4486941fbd85aa.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa7ee0d808403ebf197eaf6d2dd453c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db077a1a58c3cb4fef4486941fbd85aa.png)
您最近一年使用:0次
2022-03-08更新
|
320次组卷
|
4卷引用:1.2 乘法公式与事件的独立性
(已下线)1.2 乘法公式与事件的独立性(已下线)专题11 条件概率公式、全概率公式、贝叶斯公式、乘法公式-2021-2022学年高二数学下学期期末必考题型归纳及过关测试(人教A版2019)北师大版(2019)选择性必修第一册课本习题第六章1.2乘法公式与事件的独立性北师大版(2019)选择性必修第一册课本例题1.2 乘法公式与事件的独立性
21-22高二·全国·课后作业
6 . 已知圆
,则圆心的坐标为______ ,半径为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3acfbbd9980fb8637c765ddc1655fdd0.png)
您最近一年使用:0次
21-22高一·湖南·课后作业
7 . 在
中,
(1)若c=5,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ ;
(2)若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)若c=5,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e744f480e11f588570c5d6738799f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d35d8d8bb0dc17f2f86fe5b230a2b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d4fa3af3fbf0662cf5a246ee0aac0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7099026716ee1821dd7d9f157dc055f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feb1606f91a55ec822fa19b28c441b7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
您最近一年使用:0次
8 . 在
中,
(1)若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afde09d82ae96f00c135732baee64776.png)
______ ;
(2)若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afde09d82ae96f00c135732baee64776.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71812e0762c0aaffb51cfef66156567.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3018c687427b6257767eda4a8c6612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afde09d82ae96f00c135732baee64776.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78444042ac83617e3ddf03c60b3a71db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d4fa3af3fbf0662cf5a246ee0aac0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998329f9cdb86f5d60d7d5d70fc3781e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afde09d82ae96f00c135732baee64776.png)
您最近一年使用:0次
9 . 化简:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37519306cfa2c0d526533ab84c35ba6.png)
______ ;
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4019b2a10b9ca7a0f3c11c502d33f901.png)
______ .
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37519306cfa2c0d526533ab84c35ba6.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4019b2a10b9ca7a0f3c11c502d33f901.png)
您最近一年使用:0次
2021-12-10更新
|
249次组卷
|
3卷引用:6.1空间向量及其运算
20-21高二·江苏·课后作业
10 . 利用组合数的性质进行计算:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9f09970ad96b3ab0bb14f57aaa373d.png)
______ ;
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a32012801277ece866fd362065dffb.png)
______ .
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc9f09970ad96b3ab0bb14f57aaa373d.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a32012801277ece866fd362065dffb.png)
您最近一年使用:0次
2021-12-06更新
|
393次组卷
|
3卷引用:7.3组合