解题方法
1 . 已知随机变量
,若
,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c1ed67167078ea4f5f1ee53ee14164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f8722446a0c628568e5a5e47c77b0c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
您最近一年使用:0次
解题方法
2 . 已知直线
和曲线
,当
时,直线
与曲线
的交点个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebdb6f43de2c9b38e2dbe05a3e3e688b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71fa0ffffd152d11557e7994f947b62f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adf6c34c80335ee826bd91b0c1256a40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.0 | B.1 | C.2 | D.无法确定 |
您最近一年使用:0次
2024-04-05更新
|
287次组卷
|
2卷引用:安徽省亳州市2023-2024学年高三上学期1月期末质量检测数学试题
名校
解题方法
3 . 已知函数
是定义在
上的偶函数,函数
是定义在
上的奇函数,且
,
在
上单调递减,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-03-31更新
|
338次组卷
|
7卷引用:安徽省五校(蒙城一中涡阳一中、淮南一中、怀远一中、颖上一中)2023届高三第二次五校5月联考数学试题
安徽省五校(蒙城一中涡阳一中、淮南一中、怀远一中、颖上一中)2023届高三第二次五校5月联考数学试题(已下线)考点3 函数的单调性 2024届高考数学考点总动员【练】(已下线)重难点03 函数性质的灵活运用【八大题型】(已下线)专题3.6 函数的概念与性质全章八类必考压轴题-举一反三系列(已下线)第三章 函数的概念与性质 章末重难点归纳总结-《一隅三反》专题05 函数的基本性质(2)-【寒假自学课】(苏教版2019)湖南省长沙市明德中学2023-2024学年高一下学期3月月考数学试题
4 . 在三棱锥
中,已知
,平面
平面
,二面角
的大小为
,则三棱锥
的外接球的表面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a382548dfc016f6674e8848acd2337.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d077f6da8b2c00b152d4679aa2ed7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d294d69caac577339f11f477b2047e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 已知直线
的斜率为2,且与曲线
相切,则
的方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b05b0ddef69b72c4dbcd37135a4a8fe2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
名校
解题方法
6 . 已知函数
的部分图象如图所示,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/11/fd61b664-ea96-4b03-9208-dd8107314835.png?resizew=162)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a7331b1a0c3ec2d859ba2b0a7fac6ea.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/11/fd61b664-ea96-4b03-9208-dd8107314835.png?resizew=162)
A.![]() |
B.![]() |
C.![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
2024-03-13更新
|
580次组卷
|
2卷引用:安徽省亳州市2023-2024学年高三上学期1月期末质量检测数学试题
解题方法
7 . 如图,直四棱柱
的棱长均为
为棱
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/4740f9ce-ec7e-45b2-a227-22f02eff287f.png?resizew=162)
(1)求证:平面
平面
;
(2)若
,求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ba964c27f118895f13672321aebe5f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/4740f9ce-ec7e-45b2-a227-22f02eff287f.png?resizew=162)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/803fa75db3ac3a26a41e347dc4165026.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bf9ef324f1289e205e29fed105c38e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bbaccd578a43b2397c8bdd50592fa07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab181f6e579366c2c1f3e67e0d341b8.png)
您最近一年使用:0次
8 . 已知双曲线
经过点
,直线
与
交于
两点,直线
分别与
轴相交于点
.
(1)证明:以线段
为直径的圆恒过点
;
(2)若
,且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4d9146a8f9b8db8b43828c14959078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e09d6565903a9ace4fd3a705272cbc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/063c0013f8b9532e7fe255ef808fae94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d42cb68c5c877a455ba7ac0a6b6a651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
(1)证明:以线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35366652793f9994cc34b40d9d9af59a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6291c541a82cd920db4957479492c62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a4cc78a705f40a09a16a1bc5d581b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
9 . 已知椭圆
的左、右焦点分别为
为坐标原点,点
在
上,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be68669e8cde95b6f844477a2acfb1e3.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36813cb202ce58fe040236436b1d8dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447120a38d5e15d7a01d36231d648d7c.png)
![](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/5918ee27201b342fab2009e7f9d12da6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be68669e8cde95b6f844477a2acfb1e3.png)
您最近一年使用:0次
解题方法
10 . 记正项等比数列
、等差数列
的前
项和分别为
,已知
,
.
(1)求
和
的通项公式;
(2)设集合
,求
中元素的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/478421b81927e435cbcf5acafa89efd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bccd2aaf87a4a0c57a111c92bb88087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68e340c43602bb6d26a74a1fbd2dea2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/909d158831ad898afbad9278cf3dcdf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次