1 . 已知数列
的首项
,前n项和为
,且
.
(1)证明数列
是等比数列;
(2)令
,求函数
在点
处的导数
并比较
与
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6065aaa8f3f103d1bc960da8318ce35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21a9aaeaa1f86abaad34ae42e9794834.png)
(1)证明数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e2de706dc5f0439b989273a5367f63a.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/703af1f99f291be09ac625fbb30afb04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ad19d1ad05a31122ad5163011c89572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0577e59ca0f41ff2b68b7413236f9983.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5b37aa81a30c512d347acebdf399252.png)
您最近一年使用:0次
2022-11-29更新
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1740次组卷
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3卷引用:2005年普通高等学校招生考试数学(理)试题(山东卷)
2 . 已知数列
的首项
,前n项和为
,且
.
(1)证明数列
是等比数列;
(2)令
,求函数
在点
处的导数
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6065aaa8f3f103d1bc960da8318ce35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21a9aaeaa1f86abaad34ae42e9794834.png)
(1)证明数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e2de706dc5f0439b989273a5367f63a.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/703af1f99f291be09ac625fbb30afb04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ad19d1ad05a31122ad5163011c89572.png)
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2022-11-29更新
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3卷引用:2005年普通高等学校招生考试数学(文)试题(山东卷)
3 . 已知函数
,设曲线
在点
处的切线与x轴的交点为
,其中
为正实数.
(1)用
表示
;
(2)若
,记
证明数列
成等比数列,并求数列
的通项公式.
(3)若
,
是数列
的前n项和,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b7b0deaff280ebbee0f91be5acd20d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/641fec779880f75fa8ee6782f3350402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edeb4aa8a3ca0261e0161fd7fa8bde97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3002f56900c2924bfd79fc3865b0a02e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4223bd6ee8f82d59d244371fbcddc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dfe65f891c54780bcf1ed6a9f8a0f6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1abbe79bea9a630a3ac5db989f44d7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3819480e1e624208f729ad8653e4f24f.png)
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2022-11-24更新
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1131次组卷
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3卷引用:2007年普通高等学校招生考试数学(文)试题(四川卷)
4 . 如图,
是直角梯形,
,
,
,
,又
,
,
,直线
与直线
所成的角为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/e7511ca8-23f6-48d4-95b0-da162ea94be2.png?resizew=228)
(1)求证:平面
平面
;
(2)求二面角
的大小;
(3)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e61ce105fc9653b120d6901b32780f03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6027aa1cce130c2189f741d18bced433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3624d307a5482ff913eb8d608d827077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dca0fddd44a2a325754baf9452fe90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca036d049f5205cf04cb1b9c5cd03f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac34466d49ce1fe5dd29d02f02e5cd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bafa8c14100a4f847b41b9148954116c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/e7511ca8-23f6-48d4-95b0-da162ea94be2.png?resizew=228)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d077f6da8b2c00b152d4679aa2ed7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/324a1792318a3528772781fac2b4d2e4.png)
(3)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/142ea3931dc45cfe66b66ef17d3cefcd.png)
您最近一年使用:0次
真题
5 . 已知一组抛物线
,其中a为2,4,6,8中任取的一个数,b为1,3,5,7中任取的一个数,从这些抛物线中任意抽取两条,它们在与直线
交点处的切线相互平行的概率是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7187169735954e008ccec079861e0f5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
真题
解题方法
6 . 已知数列
,其中
.记数列
的前n项和为
,数列
的前n项和为
.
(1)求
;
(2)设
(其中
为
的导函数),计算
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0783472e255329e1e7b9c899ea80edb.png)
![](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/5f23169aa3643fd122b7087b6e410d92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfadf7483681e66386d3a4cc2a6f818b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfadf7483681e66386d3a4cc2a6f818b.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a8b2311fb26350d22e7e12873d94950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e04b4690341c9db5a9113f19b769cf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e254b36d971d7425ddf788a0b2c72c56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4293d69b733d8e887408ca6d08db7e25.png)
您最近一年使用:0次
真题
7 . 非空集合G关于运算
满足:(1)对任意
,都有
;(2)存在
,使得对一切
,都有
,则称G关于运算
为“融洽集”.现给出下列集合和运算:
①
{非负整数},
为整数的加法;
②
{偶数},
为整数的乘法:
③
{平面向量},
为平面向量的加法;
④
{二次三项式},
为多项式的加法;
⑤
{虚数},
为复数的乘法
其中G关于运算
为“融洽集”的是_____________ .(写出所有“融洽集”的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0da7e0289cc85c12ea2695309954897f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1632e3fef894e4120f9d8469d051e3c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25e6faeeed98a19d7012c921ca71a046.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/572f76c63e3a74a90a1e6ca5ae401cf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1ab14d288a58f2bd865846544b5c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff33c8b5cd9a2143d0d0367ef322cbea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff33c8b5cd9a2143d0d0367ef322cbea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff33c8b5cd9a2143d0d0367ef322cbea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff33c8b5cd9a2143d0d0367ef322cbea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
⑤
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff33c8b5cd9a2143d0d0367ef322cbea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
其中G关于运算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c3c2f679d53b91088ba6eb14c16cbc0.png)
您最近一年使用:0次
2022-11-23更新
|
752次组卷
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3卷引用:2006 年普通高等学校招生考试数学(理)试题(四川卷)
2006 年普通高等学校招生考试数学(理)试题(四川卷)(已下线)第一篇 代数与近世代数 专题2 群、环、域等新定义问题 微点1 群、环、域等新定义问题北京名校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
8 . 一给定函数
的图象在下列图中,并且对任意
,由关系式
得到的数列
满足
,则该函数的图象是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4b74ed1cf474f645df5ef7100c0d23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfb19f0c37a72b33083ae9319f11a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d6dcf4b4f85b4aa62feb4318e49806f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2022-11-23更新
|
619次组卷
|
3卷引用:2005年普通高等学校招生考试数学试题(辽宁卷)
9 . 如图,
是正四棱柱.
![](https://img.xkw.com/dksih/QBM/2022/11/9/3105868343672832/3108191510528000/STEM/d492359f10ee4499848cc24aa89cb7bd.png?resizew=163)
(1)求证:
平面
;
(2)若二面角
的大小为
,求异面直线
与
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/2022/11/9/3105868343672832/3108191510528000/STEM/d492359f10ee4499848cc24aa89cb7bd.png?resizew=163)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
(2)若二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd190b5a26dfb45a06c1d6ee86dd82d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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2022-11-12更新
|
823次组卷
|
2卷引用:2006年普通高等学校招生考试数学(文)试题(北京卷)
真题
解题方法
10 . 已知向量
,且
,那么
与
的夹角的大小是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b400999e71a799f9c3de37ca4c4e73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54f9e2f587671347a765e37329af4d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cd8bbf47b69bbd7a6263b041290d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bca35e52b8430246a1cf96e9e617cce.png)
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2022-11-12更新
|
1300次组卷
|
4卷引用:2006年普通高等学校招生考试数学(文)试题(北京卷)