1 . 非零数列
满足
,且
.
(1)设
,证明:数列
是等差数列;
(2)设
,求
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b613d5800d61f4a25c7c739d680292dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cefeddf71dca8ae824328df3f0e5e1e.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fee3cf29d889864199a6db7b1685f179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f329b217e1051b23f0d61023cdc6e69.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca857b7a6a1fe09827ecaa5f4c036069.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ab0309e2cd35585ea9fb2cc3017abf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
解题方法
2 . (1)已知
,求
的取值范围.
(2)比较
与
的大小,其中
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b17fd7892f60c91b03f26fc7f09de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d6df06a5b85848dc4fa33327f8e07.png)
(2)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa92e64c41d5566b8f2388e43401824a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1750a69f0ee1dcb6bbb04d9cd8375791.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29aef458f2367b76432719f6f56275d8.png)
您最近一年使用:0次
2023-10-07更新
|
205次组卷
|
2卷引用:新疆维吾尔自治区喀什地区2024届高三上学期第一次模考数学试题
名校
解题方法
3 . 已知等差数列
的前
项和为
,
,
.
(1)求
的通项公式;
(2)判断
与
的大小关系并证明你的结论.
![](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/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/239e8aa5071c74fa100f582cd142abd9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc6460a8052adf9c012aaf041ccfa109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
您最近一年使用:0次
2023-09-10更新
|
493次组卷
|
3卷引用:新疆维吾尔自治区喀什地区2024届高三上学期第一次模考数学试题
4 .
,求该数列的前
项和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff679fddee4a7bf073675a7d1c6f77f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次
2023-09-07更新
|
248次组卷
|
2卷引用:新疆维吾尔自治区喀什地区2024届高三上学期第一次模考数学试题
2023高三·全国·专题练习
解题方法
5 . 已知
分别为
内角
的对边,若
满足
,
.
(1)求角
;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae2d590470187705454b482bce8767e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/578adffd8f00700f3586374e132380f7.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-08-14更新
|
1059次组卷
|
3卷引用:新疆维吾尔自治区2023届高三第三次适应性检测理科数学试题
解题方法
6 . 已知数列
的首项为1,前
项和
;
(1)求数列
的通项公式;
(2)若
,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4300dca231e2f4b37f70900b33439d5e.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fac2d1bf4438b269c0bfd893ca56000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
7 . 若数列
的首项为1,且
.
(1)求证:
是等比数列;
(2)若
,求证:数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8290abdcfc02e484e7ff22e6d8359c6a.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c033d0d59a0767eea50d0afa4737e4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f760357190df9a18f36762af76fa84a.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/5300f549772f4e918a0baaa410cfa456.png)
您最近一年使用:0次
8 . 若数列
的首项为1,且
.
(1)求证:
是等比数列;
(2)求
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8290abdcfc02e484e7ff22e6d8359c6a.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c033d0d59a0767eea50d0afa4737e4.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次
解题方法
9 . 记
的内角A,B,C的对边分别为a,b,c,已知
.
(1)求∠C.
(2)若
,求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa57008f0d26c437d39e6ea95094755.png)
(1)求∠C.
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4290e29680dfe3b980003c8e8a86bf95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解题方法
10 . 已知非零数列
的前n项和为
,且满足
,其中p为常数,且
.
(1)证明:数列
是等比数列;
(2)若
,
,数列
的前n项和为
,证明:
.
![](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/b7a48c92685da35053d50b643b0ee77f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea7e0ac16c02bd211e9926c44e50334.png)
(1)证明:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7acff98078cdd32804d8f1c4efbe2ddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e33761fb26db9a36416a503fa7f0ed7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9928e46511e601913619a427ded84a3.png)
您最近一年使用:0次
2023-05-03更新
|
380次组卷
|
2卷引用:新疆乌鲁木齐市等5地2023届高三高考第二次适应性检测数学(理)试题