解题方法
1 . 已知集合
,
.
(1)若
,求
;
(2)若“
”是“
”的必要条件,求实数
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a97a364fe3348933be396a0261a9e217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/973e8173f5b67e01f9cebd9d868d3c52.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe344fe369fb629b89eb956c85498ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2 . 2023年中国成功举办了第31届世界大学生夏季运动会和第19届亚运会,某市积极响应全民锻炼的号召,组织村级足球联赛,其中
组有甲、乙、丙、丁4支足球队,每支球队都要跟组内其他球队进行一场比赛,最后按各队的积分排列名次(积分多者名次靠前,积分同者名次并列),积分规则为每队胜一场得3分,平一场得1分,负一场得0分.若每场比赛中两队胜、平、负的概率都为
,比赛结束时,在甲队输给乙队的情况下,其积分仍超过其余三支球队的积分的概率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
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解题方法
3 . 已知
,
,且
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7dbc702617c765a573961953cc0901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c9dd044c24a1c2f7d5b2bce978b450.png)
您最近一年使用:0次
解题方法
4 . 已知
,
为实数,则“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/753bc7b46730ab08df9ee4488ce34986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69d48713e7d857708708df8b4a9ea34c.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
5 . 若关于
的不等式
的解集为
或
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d03796ad94613a24f2634722dd9603b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1405599243545cfe68a311106d59816c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143159cf282c33e93c51d7617374cf4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9532480e1cc39bd207cccb9042e6aa45.png)
A.180 | B.360 | C.475 | D.495 |
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6 . 已知函数
是定义域为
的奇函数,当
时,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b6932e9aaa128eeb1236e9b2ea0ca87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be4e3838d6e4ea8e3defd8401b305774.png)
A.19 | B.![]() | C.1 | D.![]() |
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7 . 在
的展开式中,常数项为7,则正数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6501a2f409edaef531eb542c7540b5e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
名校
解题方法
8 . 记
的内角
的对边分别为
,若
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0be713d7e3b8a7b90915b46e417e9297.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49bb19a37f0055a7338da3ff036a240c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
您最近一年使用:0次
名校
解题方法
9 . 已知向量
的夹角为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e58b668c1cc0e030e92d249c0a72ca79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ff1e3430d938de2a95924fc30e9a1d.png)
A.![]() | B.![]() | C.![]() | D.5 |
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名校
解题方法
10 . 如图,在直三棱柱
中,
,
,
分别为
,
的中点.
平面
;
(2)线段
上是否存在点
,使得直线
与平面
所成的角的正弦值为
,若存在,求出线段
的长;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d355b4c58b4e883b9e65cc6da8622e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4070c1fa8bdb6a934b55c5b2bedd035b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a935b7d21a103a264b6e96ecf82dbe4a.png)
(2)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a935b7d21a103a264b6e96ecf82dbe4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d4548c32861ade058b139a5b2ec801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
您最近一年使用:0次
2024-06-12更新
|
238次组卷
|
2卷引用:河北省沧州市部分示范性高中2024届高三下学期三模数学试题