解题方法
1 . 已知
,记
(
且
).
(1)当
(
是自然对数的底)时,试讨论函数
的单调性和最值;
(2)试讨论函数
的奇偶性;
(3)拓展与探究:
① 当
在什么范围取值时,函数
的图象在
轴上存在对称中心?请说明理由;
②请提出函数
的一个新性质,并用数学符号语言表达出来.(不必证明)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df35e5cc4e070eb3ad901cdb5226ef5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ffecb03c47be920254c4ccffa5b222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)试讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(3)拓展与探究:
① 当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
②请提出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
您最近一年使用:0次
名校
2 . 设
是一个关于复数z的表达式,若
(其中x,y,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9b1cee5ac65b4e32cb0fb9e5ba4da6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c915b4ce31fabfd4703c547291ad9277.png)
为虚数单位),就称f将点
“f对应”到点
.例如
将点
“f对应”到点
.
(1)若
点
“f对应”到点
,点
“f对应”到点
,求点
、
的坐标;
(2)设常数
,
,若直线l:
,
,是否存在一个有序实数对
,使得直线l上的任意一点
“对应”到点
后,点Q仍在直线
上?若存在,试求出所有的有序实数对
;若不存在,请说明理由;
(3)设常数
,
,集合
且
和
且
,若
满足:①对于集合D中的任意一个元素z,都有
;②对于集合A中的任意一个元素
,都存在集合D中的元素z使得
.请写出满足条件的一个有序实数对
,并论证此时的
满足条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c01e03a93ade8659780af659f12e09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5bbd08209bda97df3e33163556561e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9b1cee5ac65b4e32cb0fb9e5ba4da6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c915b4ce31fabfd4703c547291ad9277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a7035cd4adda5d72a9fc9f9fda75995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30096b7bfb7d8e94336df5d1f92f16d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969b9043717a5b07402958abc5749290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edaef66a0582e95fb5c57a405acdea9a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b40590fd0945eb5c688d64e0a8d9f3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f669a1d6376f795f05b47eb7d8067c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86380a6d6501f6504dcb4aa5e3099f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2692896964f98fc258f795c0be6dd35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86380a6d6501f6504dcb4aa5e3099f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
(2)设常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51159984b2cb00f30b3986315019623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae96f5020aef5aef03ec7f406460f608.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/649546dd164eaac1f5f77a20293899c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b9dfb28a818d4435d04c101174bbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e30096b7bfb7d8e94336df5d1f92f16d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b9dfb28a818d4435d04c101174bbbb.png)
(3)设常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19339e3904e9541ff26b30ae5f1242b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c471126f22232a1ff1e88591bde0cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3473c334445af65176dde2d2e5d890ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0054d6123e214792c699c3ec1a1f8fd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b9f9cebf7c3111773f43f0be6510148.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a3ac8e9f3746c0993b1f1d31620fec2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f70b34fa2acd6a5c2e2e37222d58ec68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2527414d896f7af69a7a620e1cc57676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c01e03a93ade8659780af659f12e09.png)
您最近一年使用:0次
2023-07-05更新
|
1032次组卷
|
10卷引用:上海市静安区回民中学2024届高三上学期12月阶段性测试数学试题
上海市静安区回民中学2024届高三上学期12月阶段性测试数学试题上海市控江中学2022-2023学年高一下学期期末数学试题(已下线)专题01 条件开放型【练】【通用版】湖南省邵阳市第二中学2024届高三下学期入学测试数学试题(已下线)高一下学期期中数学试卷(提高篇)-举一反三系列浙江省绍兴市第一中学2023-2024学年高一平行班下学期期中考试数学试卷(已下线)专题06 期末解答压轴题-《期末真题分类汇编》(上海专用)(已下线)专题03 复数-《期末真题分类汇编》(人教A版2019必修第二册)江苏省泰兴中学、泰州中学2023-2024学年高一下学期5月联合质量检测数学试卷(已下线)复数-综合测试卷A卷
名校
解题方法
3 . 设函数
,其中a为常数.对于给定的一组有序实数
,若对任意
、
,都有
,则称
为
的“和谐数组”.
(1)若
,判断数组
是否为
的“和谐数组”,并说明理由;
(2)若
,求函数
的极值点;
(3)证明:若
为
的“和谐数组”,则对任意
,都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8beb896a3c01154585e0ec979934f602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911f2e62e650373b98e1b76fb8a8b24e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33890c6b0bf167514d44139d9dca0154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/774ac39e474f9c5f4e17a4c0416413cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911f2e62e650373b98e1b76fb8a8b24e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b6a9ffffc0c461881b427c543924cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e7c12bff76b3a3151dc3e392c60d53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)证明:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911f2e62e650373b98e1b76fb8a8b24e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3af0614daffb549e1adc7c24a5bbdf42.png)
您最近一年使用:0次
2023-05-11更新
|
733次组卷
|
5卷引用:上海市静安区风华中学2024届高三上学期10月月考数学试题
上海市静安区风华中学2024届高三上学期10月月考数学试题上海市七宝中学2023届高三下学期4月月考数学试题上海市南洋中学2023届高三三模数学试题上海市金山中学2022-2023学年高二下学期期末数学试题(已下线)上海市高二数学下学期期末模拟试卷02--高二期末考点大串讲(沪教版2020选修)
名校
解题方法
4 . 对于数列
,若存在正数
,使得对任意
,
,都满足
,则称数列
符合“
条件”.
(1)试判断公差为2的等差数列
是否符合“
条件”?
(2)若首项为1,公比为
的正项等比数列
符合“
条件”.求
的范围;
(3)在(2)的条件下,记数列
的前
项和为
,证明:存在正数
,使得数列
符合“
条件”.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04c7ba0ffd54e60b2829f4440c91ec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7d9712c3b25f3030e166e136d3a4686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38e103afdf96430454d8409592a2c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca3fafacd6a4d9df495f3563d22c286.png)
(1)试判断公差为2的等差数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a390a0f7b1073ebeb024a225672a7e.png)
(2)若首项为1,公比为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd07cd3600f1b5ab12e079890630edcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(3)在(2)的条件下,记数列
![](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/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed1e9cdd5a82f29ec89b2c53b4fa6f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce224c28ca451c4f105dc3b077736cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cba3bb73f0c643c79b53db038c3706a.png)
您最近一年使用:0次
2023-02-07更新
|
690次组卷
|
4卷引用:上海市市北中学2022届高三上学期期中数学试题
5 . (1)若
,解不等式
;
(2)在
的展开式中,第k项,第
项,第
项的系数成等差数列,求n和k的值;
(3)设计一道排列组合的应用题,验证下面这个等式成立:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54c50fb5615e36df436d747356b00d78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efe7796b57ad61a773f71f8a352b1a77.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e477d18c90dc2bda60c42475a5e2f3ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b00f4eb7f1bd2ccefbabf0c1dfa8f69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4792fd59c4ca11ff03dc32e367c3983f.png)
(3)设计一道排列组合的应用题,验证下面这个等式成立:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca622cfc732a2a649815f13acfd1519a.png)
您最近一年使用:0次
名校
6 . 将曲线
(
)与曲线
(
)合成的曲线记作
.设
为实数,斜率为
的直线与
交于
两点,
为线段
的中点,有下列两个结论:①存在
,使得点
的轨迹总落在某个椭圆上;②存在
,使得点
的轨迹总落在某条直线上,那么( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80a47fd46072cd717442cb378d431ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fdca98f051334f93de1defecc41b356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/321b2d0b08e09a3ca2d98bde8c2718cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0986d3184ab858e12a822937805b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.①②均正确 | B.①②均错误 |
C.①正确,②错误 | D.①错误,②正确 |
您最近一年使用:0次
2022-06-23更新
|
1189次组卷
|
10卷引用:上海市市北中学2022-2023学年高二下学期期中数学试题
上海市市北中学2022-2023学年高二下学期期中数学试题上海市黄浦区2022届高考二模数学试题(已下线)考点8-5 圆锥曲线综合应用(文理)(已下线)第13讲 椭圆 - 1(已下线)专题12平面解析几何必考题型分类训练-3上海市曹杨第二中学2023届高三下学期2月月考数学试题(已下线)2023年上海高考数学模拟卷02重庆市北碚区2023届高三上学期10月月度质量检测数学试题上海市黄浦区格致中学2024届高三下学期开学考试数学试题上海市上海中学东校2023-2024学年高二下学期3月月考数学试题
7 . 若数列
同时满足下列两个条件,则称数列
具有“性质A”.
①
(
);②存在实数
,使得对任意
,有
成立.
(1)设
,试判断
是否具有“性质A”;
(2)设递增的等比数列
的前n项和为
,若
,证明:数列
具有“性质A”,并求出A的取值范围;
(3)设数列
的通项公式
,若数列
具有“性质A”,其满足条件的A的最大值
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e772be971634dc7230df59d91399dc59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/670d5fc71b49fdb5411b046bb9a81bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655c46b33730f3a29b9ec3024df71375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b39b97c1f6007e458646cf2655a0974.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a234044b6e65e53f5f0d979886be4f48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942ed174dfdafaf5f0a68cac579110f8.png)
(2)设递增的等比数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ef4c4439b36c2847b0056a116d56d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efe308769d98da3757d3d3c9019ea84e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce224c28ca451c4f105dc3b077736cb.png)
(3)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d813f3ca8db41a4db6c18eac30fef98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/325bb1f4a88ca4e5bed08b5a4ede97ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d813f3ca8db41a4db6c18eac30fef98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f27f0c9be9710c55ab8e8d2cb4e56df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2022-06-23更新
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625次组卷
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4卷引用:上海市静安区2022届高考二模数学试题
解题方法
8 . 随着生活水平的逐步提高,越来越多的人开始改善居住条件,搬家成了生活中经常谈及的话题,在搬运大型家具的过程中,经常需要考虑家具能否通过狭长的转角过道,如果我们能够根据过道的宽度和家具的尺寸,用数学的方法预先判断家具能否转弯,必将为搬运家具提供实用的依据,从而避免因家具尺寸过大而不能转弯的麻烦,有经验的搬运工的做法是∶将家具推进过道的转角,让家具的一侧抵住过道的拐角,然后转动并推进家具,若家具过长或过宽,家具都会卡在过道内,家具将不能转过转角.
(1)请你提出一个数学问题,并将你的问题填入答题纸对应题号的方框内;
(2)为了解决问题,我们需要作出一些合理的假设∶假设1∶家具呈长方体的形状∶假设2∶转角两侧的过道宽度相同∶假设3∶墙壁是光滑的平面,且地面是水平面;假设4∶家具转动时其侧面始终保持与水平面垂直∶假设5∶过道的转角为直角∶假设6∶忽略家具转动时家具与墙壁、地面的摩擦影响;等等.根据上述假设和你提出的数学问题,画出搬运家具时一个转角过道的示意图,设定相关参数或变量,构建相应的数学模型,并将示意图和建立的数学模型填写在答题纸对应题号的方框内.
(1)请你提出一个数学问题,并将你的问题填入答题纸对应题号的方框内;
(2)为了解决问题,我们需要作出一些合理的假设∶假设1∶家具呈长方体的形状∶假设2∶转角两侧的过道宽度相同∶假设3∶墙壁是光滑的平面,且地面是水平面;假设4∶家具转动时其侧面始终保持与水平面垂直∶假设5∶过道的转角为直角∶假设6∶忽略家具转动时家具与墙壁、地面的摩擦影响;等等.根据上述假设和你提出的数学问题,画出搬运家具时一个转角过道的示意图,设定相关参数或变量,构建相应的数学模型,并将示意图和建立的数学模型填写在答题纸对应题号的方框内.
您最近一年使用:0次
名校
9 . 已知函数
,各项均不相等的数列
满足
,记
.①若
,则
;②若
是等差数列,且
,则
对
恒成立.关于上述两个命题,以下说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b923078510697d5f7f9ea392eb76dd9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb35f9410a819f3d153dfad2c92114f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f76a83b79d67e646580c7633bb974ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee9c808aa74de39cd029cc58d6fd8498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3007a67a411709ebb8b4cafcf78b8fc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7833c26d6d9d8871ecdba54c19c76a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f330dc5c6e69521f65659c9c6d002b85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
A.①②均正确 | B.①②均错误 | C.①对②错 | D.①错②对 |
您最近一年使用:0次
2021-05-24更新
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984次组卷
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6卷引用:上海市彭浦中学2023届高三上学期期中数学试题
上海市彭浦中学2023届高三上学期期中数学试题上海市浦东新区2021届高三三模数学试题(已下线)考向09 三角函数-备战2022年高考数学一轮复习考点微专题(上海专用)上海市进才中学2021-2022学年高二上学期9月月考数学试题上海市金山中学2022届高三上学期期中数学试题上海市实验学校2022-2023学年高一下学期期末数学试题
名校
10 . 设集合
,我们用
表示集合
的所有元素之和,用
表示集合
的所有元素之积,例如:若
,则
;若
,则
,
.那么下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f564bf130959f266f0f14c3639805c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6c34e9cd75b15f7c430bd414399f10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/755c2b57af72f4c54af00077cd1d9485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c222fcbaefc5bbc647ed92d79c8ab6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/359a8333abbe81d57b81d5cc2ac07fd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f1b0858395d2424dc96616173c4b65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6575c161002a00a649f92a165addaec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fedff192537d85af1fe7a2de3d8e309.png)
A.若![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2021-05-13更新
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936次组卷
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7卷引用:上海市新中高级中学2024届高三上学期10月阶段检测数学试题
上海市新中高级中学2024届高三上学期10月阶段检测数学试题浙江省金丽衢十二校2021届高三下学期第二次联考数学试题(已下线)【新东方】【2021.5.19】【SX】【高三下】【高中数学】【SX00138】(已下线)1.2 子集、全集、补集-2021-2022学年高一数学上册同步培优训练系列(苏教版2019)(已下线)专题1.集合、常用逻辑用语 - 《2022届复习必备-2021届浙江省高考冲刺数学试卷分项解析》(已下线)专题10.计数原理与古典概率 -《2022届复习必备-2021届浙江省高考冲刺数学试卷分项解析》(已下线)上海市华东师范大学第二附属中学2022-2023学年高一上学期9月月考数学试题