1 . 若奇函数
在
上可导,当
时,满足
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.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/7671d482684927be8e9be3f3ea7e82b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196be101149acfb6a6c4ceca7fc96828.png)
A.![]() | B.![]() |
C.![]() ![]() | D.不等式![]() ![]() |
您最近一年使用:0次
2 . 已知双曲线
的实轴长为2,离心率为2,右焦点为
,
为
上的一个动点,
(1)若点
在双曲线
右支上,在
轴的负半轴上是否存在定点
.使得
?若存在,求出点
的坐标;若不存在,请说明理由.
(2)过
作圆
的两条切线
,若切线
分别与
相交于另外的两点
、
,证明:
三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6b915acceebea47b3fc9e902755557.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdcbaa80a48affc347be5a1bb5079a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50297ad9f7256b4d2efc3462289f18b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50297ad9f7256b4d2efc3462289f18b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aaf867a11ac4014b51f564478f01f4b.png)
您最近一年使用:0次
名校
解题方法
3 . 已知
的面积为9,
,过D分别作
于E,
于F,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1a106e4f1a3d3f9efddb4dc4c63664.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f62ca3d0dd0057a11181c43aeb6b40b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d276d0010fd458383ea3dd61415e1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c5ebceb81a57bd8da57c45dc4085a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
您最近一年使用:0次
名校
解题方法
4 . 在
中,
,
,
对应的边分别为
,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7b7cf620e36b473d399931a1bf74044.png)
(1)求
;
(2)若
为线段
内一点,且
,求线段
的长;
(3)法国著名科学家柯西在数学领域有非常高的造诣;很多数学的定理和公式都以他的名字来命名,如对于任意的
,都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bac31c743e047705e38e6e3880a73bb.png)
被称为柯西不等式;在(1)的条件下,若
,求:
的最小值;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.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/a7b7cf620e36b473d399931a1bf74044.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e12918bd035d4e57797c078026b2e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926d38cce21b48df42041e4b8b2a7db7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
(3)法国著名科学家柯西在数学领域有非常高的造诣;很多数学的定理和公式都以他的名字来命名,如对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751f52d4cf239511828e3960e41c61df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bac31c743e047705e38e6e3880a73bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/214b60823ecc7a03759fb1df0f6d8d7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1cd0450780778d5ae577e676f6a741d.png)
您最近一年使用:0次
2024-06-17更新
|
600次组卷
|
4卷引用:福建省安溪第一中学2023-2024学年高一下学期5月份质量检测数学试题
福建省安溪第一中学2023-2024学年高一下学期5月份质量检测数学试题山东省济宁市兖州区2023-2024学年高一下学期期中质量检测数学试题山东省济宁市2023-2024学年高一下学期期中数学试卷(已下线)专题05 解三角形大题常考题型归类-期期末考点大串讲(人教B版2019必修第四册)
名校
解题方法
5 . 设离散型随机变量X,Y的取值分别为
,
.定义X关于事件“
”
的条件数学期望为
,已知条件数学期望满足全期望公式
.解决如下问题:为了研究某药物对于微生物A生存状况的影响,某实验室计划进行生物实验.在第1天上午,实验人员向培养皿中加入10个A的个体.从第1天开始,实验人员在每天下午向培养皿中加入该种药物.当加入药物时,A的每个个体立即产生1次如下的生理反应(设A的每个个体在当天的其他时刻均不发生变化,不同个体的生理反应相互独立):①直接死亡;②分裂为2个个体,且这两种生理反应是等可能的.
设第n天上午培养皿中A的个体数量为
.规定
,
.
(1)求
,
;
(2)证明
;
(3)已知
,求
,并结合(2)说明其实际含义.
附:对于随机变量X,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4c5ef7cc433f6d83d5dace3007d81e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12044571bb321a077e62fe3d24921d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dfe778b3e0bbd2220de99c382ec323b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d94932ae5d8a1772b36b5268a234a046.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8baaca444be2d6b341f0310d17ba5558.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7af49ca40f22b61efbda45d7632da572.png)
设第n天上午培养皿中A的个体数量为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93d0f3799612b81e85b87241ec8eee68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f93ddfb6148d7377a0d659b2429706a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843b0b9191cabb7c63a406e37650a96a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7af337627e78cece1daf3a8cf11a2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c7173930e7a13eb63e18f901f7772.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d6030f60e25c6344f62d900167a604.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8218c7894f6caad3396a4eab9e6094a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58664d4fcfe5b765ccc1f86d7c29ce1c.png)
附:对于随机变量X,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83507976fbfb5685fd79058bc438f0a.png)
您最近一年使用:0次
2024-06-17更新
|
235次组卷
|
2卷引用:2024届福建省莆田市第一中学高三下学期5月模拟考试数学试题
名校
6 . 已知函数
有且只有两个零点,则a的范围____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ee76255706039aa778ff3add3f71a38.png)
您最近一年使用:0次
名校
7 . 设函数
.
(1)讨论
的单调性;
(2)当
时,若
的值域为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3305fbf9257e6cfdbbaebdd83be9bb8a.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4111065517396c7fcb8a626b6bb218d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe86cace140f2c3588ab115837bbfc9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19e9454e1c89d09cb8e1fbd628ae2cbb.png)
您最近一年使用:0次
名校
解题方法
8 . 定义在
的函数
满足:任意
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9511b59df7b31567a59574d21d4fd8de.png)
A.![]() |
B.![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2024-06-16更新
|
220次组卷
|
2卷引用:福建省泉州第五中学2024届高三下学期适应性监测(二)数学试题
名校
9 . 围棋是古代中国人发明的最复杂的智力博弈游戏之一.东汉的许慎在《说文解字)中说:“弈,围棋也”,因此,“对弈"在当时特指下围棋,现甲与乙对弈三盘,每盘甲赢棋的概率是
,其中甲只赢一盘的概率低于甲只赢两盘的概率.甲也与丙对弈三盘,每盘甲赢棋的概率是
,而甲只赢一盘的概率高于甲只赢两盘的概率.若各盘棋的输赢相互独立,甲与乙、丙的三盘对弈均为只赢两盘的概率分别是
和
,则以下结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be646cd52d7f2f1714e7542e75810f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adad9633b73dfbbb3d84b4f15979e99e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/391c6e33329f5f4ad0c5107520d9a5cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b459aa38bd06fa9b5b0412c51121dd48.png)
A.![]() |
B.当![]() ![]() |
C.当![]() ![]() |
D.存在![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
10 . 已知函数
在点
处的切线平行于直线
.
(1)若
对任意的
恒成立,求实数
的取值范围;
(2)若
是函数
的极值点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aeedea4789c7a84a024b4f04a685f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea59cee971344ed593ff082a65d177c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42498f6e0fc9a61c9857b70a87f02c5e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c2abde3fa29f92916a5c6767f4683ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2448ff8cee34c60c5ff70dd059693146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e330a579e28c7d8569f0d0fd688264d.png)
您最近一年使用:0次
2024-06-16更新
|
587次组卷
|
2卷引用:福建省福州市八县市一中2024届高三模拟预测数学试题