名校
解题方法
1 . 数列
的前
项和为
,则
可以是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c58093fdb69854da3cb129789def99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/599e7f2f8baaa37baa05e1415b790bbb.png)
A.18 | B.12 | C.9 | D.6 |
您最近一年使用:0次
2024-06-12更新
|
1276次组卷
|
5卷引用:湖南省长沙市长郡中学2024届高三下学期模拟(三)数学试题
名校
解题方法
2 . 已知公差不为零的等差数列
满足:
,且
是
与
的等比中项,设数列
满足
,则数列
的前
项和
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bb9a10fb4c527e66cff264ea2aee84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65fc200f10b97588a0c9896277c9c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be9c9b05fd84ac9256d49a5a553af5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc42a19953cbb1c77fd9aa6efe1f59a.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/08eb71ecf8d733b6932f4680874dbbf3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-06-12更新
|
309次组卷
|
2卷引用:湖南省衡阳市第八中学2024届高三适应性考试数学试题
名校
3 . 已知非零数列
满足
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/011ed6d6b9f33bdfd6b74bb450334643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc677e9def14b7931d3d11738542704.png)
A.8 | B.16 | C.32 | D.64 |
您最近一年使用:0次
2024-06-11更新
|
692次组卷
|
3卷引用:湖南省永州市2024届高三第三次模拟考试数学试题
4 . 在
中,
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15aa03a938c7d11e862ddd0579077c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
5 . 已知
的三个角
,
,
的对边分别是
,
,
,若
,
,则
( )
![](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/eb2dc430443bbfe43a67d5d0f8e326c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa8d75a6638e08eedbff8662267da6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1813aa92d2379664c36eb440ef7506fc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-06-08更新
|
1164次组卷
|
4卷引用:湖南省长沙市长郡中学2024届高三下学期考前保温卷(二)数学试题
名校
解题方法
6 . 在
中,内角A,B,C的对边分别为a,b,c,若
,
为AC的中点,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b05d3b8f5c9df891ef6fbcaf12f43207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a75044da01aee5031330e00d1d2400cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c978d92edf0c4c1ef8620c17df75d35e.png)
A.1 | B.![]() | C.![]() | D.2 |
您最近一年使用:0次
2024·全国·模拟预测
名校
解题方法
7 . 已知三棱锥
的外接球的体积为
,
平面
,
,
,则三棱锥
的体积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a94d59dee2d5a8f0425b64b2083825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f18aaaddbf4b17da45a5821c349f6e18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9c439e4e4e48b17e19e666d892216fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65b229bf0a565049936d2931435f36da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd1e379a269e9f2018bf4bc0293ecf0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a94d59dee2d5a8f0425b64b2083825.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 已知等比数列
中,
,
,则公比
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1323c6f226d29ebf62e2c9461ce19f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73abda0b2c65194421a02d6dc1380f86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.![]() | B.2 | C.![]() | D.4 |
您最近一年使用:0次
9 . 已知数列
中,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1888c898d49e1561b671eb030ebd294.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afd21f4cb498101d26b4aaa2e1a6addc.png)
A.![]() | B.![]() | C.1 | D.2 |
您最近一年使用:0次
名校
解题方法
10 . 已知数列
中,
,
(其中
表示
的整数部分,
表示
的小数部分),则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49d2b2d4f703cbaa738a7cdfc7129c17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37941d690486e2b674f965c6cafb3f95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b467b0667aad83b30ce6ef93ed88289.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24266445fd940abb343ac52372f3f80a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7b44aa2e8257a15ec68a5f48bd3733.png)
A.2024 | B.2025 | C.4046 | D.4047 |
您最近一年使用:0次