9-10高三·湖北·阶段练习
名校
1 . 已知数列
是公差不为零的等差数列,
成等比数列,则
=___
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7245a4541eeac9f438761971ce589040.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
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2019-01-30更新
|
1095次组卷
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8卷引用:北京名校2023届高三一轮总复习 第5章 数列 5.5 数列综合应用
北京名校2023届高三一轮总复习 第5章 数列 5.5 数列综合应用天津市第四十五中学2023-2024学年高三上学期第一次月考数学试题天津市宝坻区第四中学2023-2024学年高三上学期期中综合测试一数学试题天津市红桥区2023-2024学年高三上学期期中数学试题(已下线)2011届湖北省部分重点中学高三第二次联考数学理卷(已下线)2011届黑龙江省大庆实验中学高三高考仿真模拟试题理数上海市十校2016届高三上学期第一次联考(理科)数学试题上海市七宝中学2023-2024学年高二上学期期中数学试题
2 . 给定数列
.对
,该数列前
项的最大值记为
,后
项
的最小值记为
,
.
(1)设数列
为
,
,
,
,写出
,
,
的值;
(2)设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf5b296e1144d0e0398332a72bee14ce.png)
是公比大于
的等比数列,且
.证明:
是等比数列.
(3)设
是公差大于
的等差数列,且
,证明:
是等差数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf5b296e1144d0e0398332a72bee14ce.png)
![](https://img.xkw.com/dksih/QBM/2013/7/17/1571285100347392/1571285106163712/STEM/632e2f6ad38946709a1e99b3670154c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e819b87f90651d89fcd258c276294e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7ae03cc5b86e350a8d81db0d6b473b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac5f5fc996af5eb8f6619bc124e4d34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc5c895153932c3e827a464664cef90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c6aaf7040d41361eb30084796264d65.png)
(1)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d737c1047a14cee12a6671383e244fa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b06e95b57b7a81cd81d05557a11fa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edf900c810371fb21297c15f86d8743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31ac1def558351e2e3ed1235c570530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d0252c1b2f7d2a84b5c985d19d547.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf5b296e1144d0e0398332a72bee14ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3492fed4c32f003868cf173a2e9085e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d157b8c366da862bb263221f2c566f5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00e81bc3cb9f0327445ac9be85c20f4c.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00e81bc3cb9f0327445ac9be85c20f4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48fa462125a76ef6776c05c7aa2bc464.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ef10ef2b181375883e3fe8c9ce7a56.png)
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10-11高三上·广东茂名·期中
真题
名校
3 . 已知数列
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de900f0b4064d0e582cc68f107318e3.png)
(I)证明:数列
是等比数列;
(II)求数列
的通项公式;
(III)若数列
满足
证明
是等差数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de900f0b4064d0e582cc68f107318e3.png)
(I)证明:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f95617f843bb1b9126a3cb071a89f68.png)
(II)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
(III)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf7391f711825757e404321add3652d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
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2019-01-30更新
|
1222次组卷
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6卷引用:江苏省常州市前黄高级中学2023届高三下学期二模适应性考试数学试题
江苏省常州市前黄高级中学2023届高三下学期二模适应性考试数学试题北京名校2023届高三二轮复习 专题三 集合与数列 第1讲 等差、等比数列(已下线)2011届广东省高州三中高三上学期期中考试数学卷(已下线)2012届重庆市四十八中学高三综合练习一理科数学试卷2006年普通高等学校招生考试数学(文)试题(福建卷)人教A版 成长计划 必修5 第二章数列 应用·拓展·综合训练
名校
4 . 若
成等差数列;
成等比数列,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0adeb35b8ba410bc0123aa90747db431.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62073f90b3d0008e8b99d68a4db35191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/116c015cf1468082b8184350e30d41a0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-12-28更新
|
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7卷引用:河北省衡水中学2023届高三下学期第五次综合素养测评数学试题
名校
5 . 在各项均为正数的等比数列
中,
,且
,
,
成等差数列.
(Ⅰ)求数列
的通项公式;
(Ⅱ)若数列
满足
,且
对一切
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381576e698a46df8c497e6b5f8346ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/501a39aa41b37406b759651e5281e00e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feaf542829b99205948fa97442c3db92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9315562cce4522871aa68730d4ce771b.png)
(Ⅰ)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
(Ⅱ)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2448cf72af76b810310e4cfb9818e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f99c0b9837796cc244cc8f859f093b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c58f5bacecd2c29f949b0317999ec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8c29b297e3ec337c3139c2a1ebed1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2018-12-20更新
|
985次组卷
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3卷引用:河南省郑州市外国语学校2023-2024学年高三上学期调研七(联考)数学试卷
6 . 设
,
为正整数,一个正整数数列
,
,…,
满足
,对
,定义集合
,数列
,
,…,
中的
(
)是集合
中元素的个数.
(I)若数列
,
,…,
为5,3,3,2,1,1,写出数列
,
,…,
;
(II)若
,
,
,
,…,
为公比为
的等比数列,求
;
(III)对
,定义集合
,令
是集合
中元素的个数.求证:对
,均有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c827decbf8ca42797b3ab43562d8a834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f59d39259c5b099998c3641814be99a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4479e73de0664383ce113b4f01ae4598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f64696f60c533ad95dc7890eb902741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1602c6064af12eed3fd1291f8272d93c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f59d39259c5b099998c3641814be99a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc5c895153932c3e827a464664cef90.png)
(I)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f64696f60c533ad95dc7890eb902741.png)
(II)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334f8809e0f6e2a995f034b86f6c5501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/527093b2ec760913d0dccff8a099248b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f64696f60c533ad95dc7890eb902741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831ed34d8c6d99fdd0b94688ef03bfcb.png)
(III)对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2429b6a233ef2f66677b15bc11a13294.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c608fc4965bcc95b7f9d463aa9499b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12161550d951e17f4eb3de58496cd6e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e19dd2f5dd5c782fc17b44ad2d68a450.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2429b6a233ef2f66677b15bc11a13294.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b554bc1451068f8a8d7f2432ef545ff.png)
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名校
7 . 数列
的首项
,且
,令
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b4678a57144f661cd1beeffc02b318.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fe76e8e6d55090d190f2018fe9b145b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94e22de952e2b63bb9a750a77200d77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b4678a57144f661cd1beeffc02b318.png)
您最近一年使用:0次
2018-11-08更新
|
4916次组卷
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6卷引用:广西壮族自治区防城港市2023届高三下学期4月月考数学(文)试题
广西壮族自治区防城港市2023届高三下学期4月月考数学(文)试题清华大学中学生标准学术能力诊断性测试2018年11月测试(一卷) 理科数学试卷山东省泰安第二中学2020届高三11月月考数学试题河北省武安市第三中学2021届高三上学期期中数学试题(已下线)2021届高三数学新高考“8+4+4”小题狂练(29)(已下线)【练】 专题7 等比数列与等差数列的综合问题
名校
8 . 等差数列
的公差d≠0,a3是a2,a5的等比中项,已知数列a2,a4,
,
,……,
,……为等比数列,数列
的前n项和记为Tn,则2Tn+9=_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f049f317a9217026eb802c8d461bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caab6829e4599366a283cd60a21d13e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/664d578479b92a2ad0dde097ad502da7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf7709b35b14c00e3d8b5f26f1e070b6.png)
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名校
9 . 若三个非零且互不相等的实数
成等差数列且满足
,则称
成一个“
等差数列”.已知集合
,则由
中的三个元素组成的所有数列中,“
等差数列”的个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78bb3d30a94431d5be2a8ef45a5904fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9843d419b31cd4121f33f500b937edcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-10-17更新
|
1370次组卷
|
11卷引用:北京名校2023届高三二轮复习 专题三 集合与数列 第3讲 集合与数列创新题
北京名校2023届高三二轮复习 专题三 集合与数列 第3讲 集合与数列创新题北京工业大学附属中学2018-2019学年度第一学期摸底考试高三数学(理)学科试题上海市奉贤区2019届高三一模数学试题【全国百强校】北京市人大附中2019届高考信息卷(二)理科数学试题北京市朝阳区2018届高三年级第二次综合练习数学(理)测试试题北京市第一七一中学2022届高三上学期期中考试数学试题福建省永定第一中学2023-2024学年高二上学期第一次阶段测试数学试题福建省莆田第二十五中学2023-2024学年高二上学期期中考试数学试题河南省南阳市第一中学2019-2020学年高二上学期开学考试数学试题(已下线)必修5模块检测卷(基础过关)-2020-2021学年高二数学单元测试定心卷(苏教版必修5)北京市师范大学第二附属中学2021-2022学年高二下学期期中考试数学试题
名校
10 . 给定无穷数列
,若无穷数列
满足:对任意
,都有
,则称
与
“接近”.
(1)设
是首项为
,公比为
的等比数列,
,判断数列
是否
与
接近,并说明理由;
(2)设数列
的前四项为:
,
,
,
,
是一个与
接近的数列,记集合
,求
中元素的个数
;
(3)已知
是公差为
的等差数列,若存在数列
满足:
与
接近,且在
,
,…,
中至少有
个为正数,求
的取值范围.
![](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/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3dd644fc0373b59f11179da6a242bed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd2c0bdead124cca6b0083509f8eb3ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9b6e51986fe5d7a7265e0e93adcb4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6df1038200f2d97a52c716aab6c3bcb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22c5c4ac959eb2c4b74afabc9cdd3a6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6085ef7d087cdf7c117978dcfce3f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45aec1e4ca31a14444f4bc8682ab5d9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/085a37c2996e097b38235498876dadbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ffdba64d0b29ba1f87bba807c82395f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efba7147f5b9ced8bc4a72f0a9fb8af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
您最近一年使用:0次
2018-09-20更新
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2219次组卷
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8卷引用:专题16 数列新定义题的解法 微点2 数列新定义题的解法(二)
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