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解题方法
1 . 体育课的排球发球项目考试的规则是:每位学生最多可发球3次,一旦发球成功,则停止发球;否则一直发到3次为止.设学生一次发球成功的概率为
,发球次数为
,若
的数学期望
,则
的取值可能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c171d0021b15415b055c223935a2292.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd28a3a1be8f5c9a6dc1d6d0fe2eaf1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 已知函数
.
(1)若曲线
在
处的切线与直线
垂直,求实数
的值;
(2)设
,若对任意两个不等的正数
,都有
恒成立,求实数
的取值范围;
(3)若
上存在一点
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecbf1fd0ccf3250c18087bb7884b8cd5.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df49341b57eb107f416a014903ce25a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710c58628d4a3990ac8347dfa2d2ca7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78c204be088a8fc6c096eedd5b1e7dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09de0194a06448de53481d7f316a9495.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7754cc9374c8193dadb6875fb8a3fefb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df760390a3b602cf621bb1ed4ac891da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3 . 袋中装有大小相同的4个红球和6个白球,从中取出4个球.
(1)若取出的球必须是两种颜色,则有多少种不同的取法?
(2)若取出的红球个数不少于白球个数,则有多少种不同的取法?
(3)取出一个红球记2分,取出一个白球记1分,若取4球的总分不低于5分,则有多少种不同的取法?
(1)若取出的球必须是两种颜色,则有多少种不同的取法?
(2)若取出的红球个数不少于白球个数,则有多少种不同的取法?
(3)取出一个红球记2分,取出一个白球记1分,若取4球的总分不低于5分,则有多少种不同的取法?
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4 . 已知
,且
,则
在
上的投影向量为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beebf4aeb3205b07f0782ed684c32c0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d7987e6352f04291d78fcf0bb2f945f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-05-16更新
|
965次组卷
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2卷引用:安徽省黄山市2024届高中毕业班第二次质量检测数学试题
解题方法
5 . 下列论述正确的有( )
A.若随机变量![]() ![]() ![]() |
B.若随机事件![]() ![]() ![]() ![]() ![]() ![]() ![]() |
C.基于小概率值![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() |
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6 . 若函数
有两个零点,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aae864b79561a9e88e01b8fb9d58cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
7 . 如图,已知
为圆台下底面圆
的直径,
是圆
上异于
的点,
是圆台上底面圆
上的点,且平面
平面
,
,
,
是
的中点,
.
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4f6f74444b2b7947fc6e35c8d62322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8ff58f671a287701011a1b31e67e28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5950d1e82470d01f4afe560defb52318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65a3e478bb87d094e3a0af30dd10ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2e4b81accb61f8bbf4252bcc2292c07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1db978ac681b31614699fd763876c37e.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
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8 . 已知数列
是等差数列,且
,
,则数列
的公差
是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/894aaec56149f880c7cf2bbc0f358d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2693734765399876e9e93cdb110231c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a39dabf1d2cb4094bd2178576970d29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/894aaec56149f880c7cf2bbc0f358d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
9 . 记
的内角
,
,
的对边分别为
,
,
,向量
,
且
.
(1)求角
的大小![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1d918e7fb74176679d526cdfc8fa16.png)
(2)若
的面积为
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3210b69f9967fcf5960668a150ebfdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dccd794bc79525c624dd550f495d3f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6ed36888294877fabd9ceda6f53aca.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1d918e7fb74176679d526cdfc8fa16.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802e162b98c280720fcb909cf392fda3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60511f6d4d7f5a1743ed4c283fffc58c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
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2024-04-20更新
|
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2卷引用:安徽省黄山市2024届高中毕业班第二次质量检测数学试题
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10 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19df635acc14579a821b408206549971.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3bf17e2189abda65de08b248b6155c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/440555e75c74af7ac1f03512f86ee363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19df635acc14579a821b408206549971.png)
您最近一年使用:0次
2024-04-20更新
|
637次组卷
|
2卷引用:安徽省黄山市2024届高中毕业班第二次质量检测数学试题