名校
解题方法
1 . 已知
是等差数列
的前
项和,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](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/11c641d9c6203f790446466da45a49ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4e70b360f988fdbd92300ab22c4613.png)
A.20 | B.28 | C.36 | D.4 |
您最近一年使用:0次
2023-04-04更新
|
487次组卷
|
2卷引用:河南省南阳市六校2022-2023年学年高二下学期第一次联考数学试题
名校
2 . 设等差数列
、
的前n项和分别是
,
,若
,则
=( )
![](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/8bd56c886d76991ec450d4aa1b7a6174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b7945db9c39acabdfb57dde1a97a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8bb1bc4a6611d69df87111c06687cfa.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-04-04更新
|
1449次组卷
|
7卷引用:河南省南阳市六校2022-2023年学年高二下学期第一次联考数学试题
3 . 若1,
,
,4成等差数列;1,
,
,
,4成等比数列,则
等于( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57483e04fd1840c87ac5325157149877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a548938d87c80ac47910607d3857007f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cf8b0540111394b845307f7a6982ac3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-04-01更新
|
828次组卷
|
5卷引用:河南省郑州励德双语学校2022-2023学年高二下学期4月考试数学试题
4 . 已知数列
为等差数列,其前n项和为
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcc3f2d8ef9d7aae5ddf1bf880ace8d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b08a8c9baca410ef1464caf7f522aa4a.png)
A.0 | B.2 | C.4 | D.8 |
您最近一年使用:0次
2023-03-30更新
|
351次组卷
|
2卷引用:河南省名校青桐鸣2023届高三3月联考文科数学试题
解题方法
5 . 已知数列
满足
,其前n项和为
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b93bb2c66e49ac3efaf0686d4f3815.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b75ec86aa0e1fe86f6fdeee4ab26ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dbd9ff686703cad03aa383e5fec21.png)
A.![]() | B.0 | C.2 | D.4 |
您最近一年使用:0次
2023-03-30更新
|
1338次组卷
|
4卷引用:河南省名校青桐鸣2023届高三3月联考理科数学试题
名校
解题方法
6 . 若前
项和为
的等差数列
满足
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4842fa012c6d42a415a5b5387be1bdd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f34e2c5401eb82e87a7f13f03fd4ba4.png)
A.46 | B.48 | C.50 | D.52 |
您最近一年使用:0次
2023-03-27更新
|
1010次组卷
|
7卷引用:河南省新未来2022-2023学年高二下学期3月联考数学试题
7 . 设等差数列
的前n项和为
,若
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea7d9694ad0052a6e4c87e4fd51a5d15.png)
A.数列![]() | B.![]() |
C.当![]() ![]() | D.![]() |
您最近一年使用:0次
2023-03-25更新
|
542次组卷
|
2卷引用:河南省南阳市方城县光明学校2022-2023学年高二下学期3月月考数学试题
名校
8 . 设等差数列
的前
项和为
,且
,则下列各项中值最大的为( )
![](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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccf20f4c6113022f78a78cccdfd66f43.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
9 . 在等差数列
中,若
是方程
的两根,则
的前12项的和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff2d964669c18340e182cbdb8913917.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45f3e82b25339b98d64f6c52084c530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.12 | B.18 | C.![]() | D.![]() |
您最近一年使用:0次
2023-03-24更新
|
640次组卷
|
4卷引用:河南省郑州市第二高级中学2022-2023学年高二下学期3月月考数学试题
河南省郑州市第二高级中学2022-2023学年高二下学期3月月考数学试题山东省德州市第一中学2023-2024学年高二下学期3月月考数学试题江西省宜春市第三中学2022-2023学年高二下学期期中考试数学试题(已下线)四川省巴中市2023届高三“一诊”考试数学(理)试题变式题1-5
2023·全国·模拟预测
10 . 已知等差数列
的前
项和为
,
,则
( )
![](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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6ea12eefdcfe6399671e0e9046dbc1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5d2c6282df9bd122ad3b2830cfb40c.png)
A.87 | B.86 | C.85 | D.84 |
您最近一年使用:0次
2023-03-18更新
|
658次组卷
|
4卷引用:河南省郑州励德双语学校2022-2023学年高二下学期4月考试数学试题
河南省郑州励德双语学校2022-2023学年高二下学期4月考试数学试题湖北省荆州市公安县第三中学2022-2023学年高二下学期3月月考数学试题(已下线)2023年普通高等学校招生全国统一考试数学猜题卷(九)(已下线)高考仿真模拟卷(文科)