名校
解题方法
1 . 已知公差不为0的等差数列
的首项
,且
成等比数列,记
的前
项和为
.
(1)求
的通项公式及
;
(2)记
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86fc336b4a83bf6d66c4afcc431597f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebf8164862d934f66190637a4f9f285f.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/08eb71ecf8d733b6932f4680874dbbf3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032b74193c04dd5b9b389f93de59e2cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b391ab37c443721bf2d02eb95e233cb.png)
您最近一年使用:0次
2023-12-23更新
|
494次组卷
|
2卷引用:重庆市云阳高级中学校等五校2024届高三上学期联考数学试题
名校
解题方法
2 . 在锐角
中,内角
的对边分别为
,已知
.
(1)求A;
(2)求
的取值范围.
![](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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689108f1e6e58a6bf525945b094a9686.png)
(1)求A;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c6dc66f7bed56ecbb8071f638a6ec86.png)
您最近一年使用:0次
2023-12-22更新
|
754次组卷
|
4卷引用:重庆市云阳高级中学校等五校2024届高三上学期联考数学试题
重庆市云阳高级中学校等五校2024届高三上学期联考数学试题重庆市好教育联盟2024届高三上学期12月联考数学试题福建省部分学校2024届高三上学期12月月考数学试题(已下线)专题12 正余弦定理妙解三角形问题和最值问题 (11大核心考点)(讲义)
名校
解题方法
3 . 已知二次函数
满足
,且
.
(1)求
的解析式;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7bff4570ec691a886a16b602944cc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab30faa78cc53c104f61b1cd906c365.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07367a4ca40aa9f939e75197f00b0c6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
名校
解题方法
4 . 已知不等式
的解集是
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d7f6c9576189874a84570689b1f17b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6a593ade597bb19009f4a85500ad671.png)
A.![]() |
B.![]() |
C.不等式![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
名校
5 . 已知
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5108bfd6adfec7b1bf7164620188e916.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-12-10更新
|
108次组卷
|
2卷引用:重庆市云阳县、梁平区等地学校2023-2024学年高一上学期12月联考数学试题
解题方法
6 . 在
中,角
所对的边分别为
,
.
,
的平分线交
于点
,且
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b378a2df371f5ff1815c03a84f571229.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ab9b3610c3d5e741235fc6c838517c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95d5243b3366741a7f89bc76316b4594.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f10681704c4fccfd37664eaf34391dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ae7ee42a70292a1baae23d58c64f237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e01c1e4603f3d4f44facb93af91c76.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
7 . 今年以来,旅游业迎来了全面复苏的喜人景象.某文旅企业准备开发一个新的旅游景区,前期投入200万元,若该景区开业后的第一年接待游客
万人,则需另投入成本
万元,且
,该景区门票价格为64元
人.
(1)求该景区开业后的第一年的利润
(万元)关于人数
(万人)的函数关系式(利润
收入
成本).
(2)当该景区开业后的第一年接待游客多少人时,获得的利润最大?最大利润为多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826308511448f7b791edf4199c690768.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b1dc7b93bf914fe5dbc651e1a779243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4333bb203d02814c146ed587b69ea69d.png)
(1)求该景区开业后的第一年的利润
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9966dfe9109671c587892bd32f0b6699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc339cf6dd66599db64fa3fa44e608.png)
(2)当该景区开业后的第一年接待游客多少人时,获得的利润最大?最大利润为多少?
您最近一年使用:0次
2023-11-23更新
|
185次组卷
|
2卷引用:重庆市云阳县、梁平区等地学校2023-2024学年高一上学期12月联考数学试题
名校
解题方法
8 . 已知数列
的前
项和为
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3e45948012eaadd05f96e8ba11a6b8b.png)
.
(1)求证:数列
是等比数列,并求数列
的通项公式;
(2)设
,数列
的前
项和为
,求证:
.
![](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/f3e45948012eaadd05f96e8ba11a6b8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52227e660b1301ddc2c2e46d21fe04da.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c895d4ce5ce82ef9b311b9369b4de11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa750b33b6632a3efee7f1188db23a50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c3fec47d2dd2b8099d86c87b6e57de8.png)
您最近一年使用:0次
2023-11-09更新
|
907次组卷
|
3卷引用:重庆市云阳县实验中学2024届高三上学期11月检测数学试题
9 . 已知数列
的前
项和为
,且
.
(1)求
的通项公式;
(2)设
,若对任意
都有
成立,求实数
的取值范围.
![](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/82320e5690689c4fde2b4c4790d8d1b0.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724251e1570848a033e70217a14e639e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/288a18c9690c22a70c25c0777e26ae82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2023-11-09更新
|
1105次组卷
|
3卷引用:重庆市云阳县实验中学2024届高三上学期11月检测数学试题
解题方法
10 . 在
中,内角
的对边分别为
.
(1)求
;
(2)若
,点
在边
上,且
,求
面积的最大值.
![](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/764cdc5a02526e94b655c91288b7e903.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebc89442384b8022b2d47cd596a3177f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
您最近一年使用:0次
2023-11-09更新
|
512次组卷
|
2卷引用:重庆市云阳县实验中学2024届高三上学期11月检测数学试题