名校
1 . 已知函数
的部分图象如图所示,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1b6811a8562bd89f2e167d84d86e776.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b38e8147502f4c4b2ede7f6d88cd3a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1b6811a8562bd89f2e167d84d86e776.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/18/f73e8a8f-2a0b-46f9-a3ba-c05fe6542d57.png?resizew=204)
您最近一年使用:0次
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解题方法
2 . 已知函数
.
(1)当
时,试讨论函数
的单调性;
(2)设函数
有两个极值点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91eec9195a4c6f8ef94187e927223071.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e63bbc2d20da74e9c9a0a627e6e2d56b.png)
您最近一年使用:0次
2023-09-06更新
|
427次组卷
|
3卷引用:云南省曲靖市第二中学学联体2023届高三下学期第二次联考数学试题
名校
解题方法
3 . 已知双曲线
的左右焦点分别为
,点
在双曲线上,若
,且双曲线焦距为4.
(1)求双曲线
的方程;
(2)如果
为双曲线
右支上的动点,在
轴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,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc971766f946244b72b79ca1d23fd12a.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/c5e1cef07974dfeea6f06839ff693ffb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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2023-09-03更新
|
1250次组卷
|
6卷引用:云南省昆明市第一中学2024届高三上学期第一次月考数学试题
云南省昆明市第一中学2024届高三上学期第一次月考数学试题贵州省贵阳市清华中学2024届高三上学期10月月考数学试题(已下线)重难专攻(十)圆锥曲线中的定点问题 讲(已下线)高二上学期期中复习【第三章 圆锥曲线的方程】十二大题型归纳(拔尖篇)-2023-2024学年高二数学举一反三系列(人教A版2019选择性必修第一册)(已下线)专题突破卷23 圆锥曲线大题归类(已下线)第3章 圆锥曲线与方程单元检测(提优卷)-2023-2024学年高二数学《重难点题型·高分突破》(苏教版2019选择性必修第一册)
名校
4 . 某商场计划在国庆节开展促销活动,准备了游戏环节,主持人准备一枚质地均匀的骰子,掷到奇数和偶数的概率各为
,游戏要求顾客掷
次骰子,每次记录下点数为奇数还是偶数.
(1)若正好有
次的点数为偶数,则顾客获得一个价值50元的红包作为奖励,你认为
和
哪种情况更有利于你获得红包?
(2)投掷
次骰子后,若掷出偶数的次数多于奇数,则顾客获得一张100元的消费券;掷出偶数的次数等于奇数,则顾客获得一张50元的消费券;掷出偶数的次数少于奇数,则顾客获得一张10元的消费券.
(ⅰ)当
时,记顾客获得的消费券为
元,求随机变量
的数学期望;
(ⅱ)记“掷
次骰子,掷出偶数的次数多于奇数”的概率为
,求
(直接写出
表达式即可)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3ead092399d82ee499fe798c571f67a.png)
(1)若正好有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc2d3df37e73a8abea815f37dbb3fff5.png)
(2)投掷
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
(ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc2d3df37e73a8abea815f37dbb3fff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f022950e0faa45b617d497b01b5292b9.png)
(ⅱ)记“掷
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
您最近一年使用:0次
名校
5 . 如图,直四棱柱
的底面
是菱形,
是
的中点,
为线段
上一点,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/fe857464-e59e-40b7-97e8-308f734aae33.png?resizew=180)
(1)证明:当
时,
平面
;
(2)是否存在点
,使二面角
的余弦值为
?若存在,请指出点
的位置;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394c5d2f55221975503be8aa18022480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad1a56baf43ffdf67bc8460856e31fec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/28/fe857464-e59e-40b7-97e8-308f734aae33.png?resizew=180)
(1)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c114237f609956017bc72f4971d5b375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4c3f9dd5d0343597a7f58a1989b537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134ef0b1a2669a09f05bd4dc2496f706.png)
(2)是否存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d31d79927f9b7d0e911af5571e660575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
您最近一年使用:0次
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6 . 已知椭圆
的左、右顶点分别为
,
,右焦点为
,
为椭圆上一点,直线
与直线
交于点
,
的角平分线与直线
交于点
,若
,
的面积是
面积的6倍,则椭圆
的离心率是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b836d2b043c465ccb0207ad6ca78b1c4.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b53b86bd516400d6fa7dabb3603f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2d4ab4f05dbd1a4301ed0dc4c73aa75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b53b86bd516400d6fa7dabb3603f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80406e8beb743b122bd7b021671c780.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a11cb104b04c4e6a1be700e81da279a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48783d1e42a271661f3b162501c06032.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2023-03-26更新
|
1065次组卷
|
5卷引用:云南师范大学附属中学2023届高三第八次月考数学试题
云南师范大学附属中学2023届高三第八次月考数学试题(已下线)第83练 计算速度训练3(已下线)第八章 解析几何 专题3 复杂背景的离心率的求解问题江苏省镇江中学2022-2023学年高二下学期6月月考数学试题(已下线)专题16 妙解离心率问题(12大题型)(练习)
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解题方法
7 . 已知
,
,且
,则下列不等式一定成立的有( )
![](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/536178538dd8176b8743e3ceb94523a2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-03-26更新
|
1247次组卷
|
3卷引用:云南师范大学附属中学2023届高三第八次月考数学试题
名校
8 . 已知
,直线
与曲线
相切,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36b234ba460321e811de1729eadd4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/525454e7a8d54a2f9523b152efd7f91a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
您最近一年使用:0次
2023-03-26更新
|
533次组卷
|
2卷引用:云南师范大学附属中学2023届高三第八次月考数学试题
名校
9 . 已知实数
,
,
,且满足
,则下列判断正确的是( )
![](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/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc485dbbcf5868ed7ade849adb4a1b2a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-03-07更新
|
469次组卷
|
4卷引用:宁夏银川一中、云南省昆明市第一中学2023届高三联合考试一模数学(理)试题
宁夏银川一中、云南省昆明市第一中学2023届高三联合考试一模数学(理)试题(已下线)宁夏银川一中、云南省昆明市第一中学2023届高三联合考试一模数学(理)试题(已下线)专题04导数及其应用(选填题)河南省信阳高级中学2023届高三二轮复习滚动测试8文科数学试题
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解题方法
10 . 已知函数
(
且
)的极大值和极小值分别为
,
,且
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2a3f217a7f97001d5ca209e17dfe42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9769116ec47353514e6b7fb7b17216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/542893790445d6d888d9ff91fd215c9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-12-31更新
|
532次组卷
|
2卷引用:云南师范大学附属中学2023届高三上学期高考适应性月考卷(六)数学试题