名校
1 . 设A是由
个实数组成的2行n列的矩阵,满足:每个数的绝对值不大于1,且所有数的和为零.记
为所有这样的矩阵构成的集合.记
为A的第一行各数之和,
为A的第二行各数之和,
为A的第i列各数之和
.记
为
、
、
、
、…、
中的最小值.
(1)若矩阵
,求
;
(2)对所有的矩阵
,求
的最大值;
(3)给定
,对所有的矩阵
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd9dbdea32a8f7b9fd4c8982eef6dea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15fc1924d5c54d4f2824f6accc1238b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b68fd1ac04715b65105c0cf40aa84f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61a2629e9e3b3fcf0c0bdd49c76b95cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a954ad5b391cfc9440f0444cbbfa889d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f128d1af43d66e8048295604ef89046.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ba5c6f604da3afa5c18d368fb12060.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30773f6541752c8d133db5662ccee553.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d137142642163af066957fe19218ed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/260bcd4709ef67852ef6e2de9841e75d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5af2bb6f225862039961601a07e7d7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9624751c77e7b93a0166bbdc302cdc6.png)
(1)若矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63da318b4a47902b2a7979230e997e28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ba5c6f604da3afa5c18d368fb12060.png)
(2)对所有的矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0b432f6219d00bd0b2bc483401b9dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ba5c6f604da3afa5c18d368fb12060.png)
(3)给定
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b18969d9db906a0f002b762113ecf077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01aef0b7f72cd41492cade2785ccc6cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ba5c6f604da3afa5c18d368fb12060.png)
您最近一年使用:0次
2022-05-28更新
|
450次组卷
|
3卷引用:上海市2022届高三高考冲刺卷六数学试题
2022高三·全国·专题练习
2 . 数列
满足
,
(1)求
的值;
(2)求数列
前
项和
;
(3)令
,
,证明:数列
的前
项和
满足
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d1f5ed8701852d94f1f2bdca27214c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
(2)求数列
![](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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aaee408bdec05bbdfcd4b841a331e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/170a008facca7caf11cb80765d801399.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/b3e205f31d50e1edbe83af4e088b9533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c5f845194ad77dfb97a15ba4ebfca6.png)
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3 . 若数列{an}满足n≥2,n∈N*时,an≠0,则称数列
为{an}的“L数列”.
(1)若a1=1,且{an}的“L数列”为
,求数列{an}的通项公式;
(2)若an=n+k﹣3(k>0),且{an}的“L数列”为递增数列,求k的取值范围;
(3)若
,其中p>1,记{an}的“L数列”的前n项和为Sn,试判断是否存在等差数列{cn},对任意n∈N*,都有cn<Sn<cn+1成立,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9beaf2c4ef475a0c116c808b5bc82d72.png)
(1)若a1=1,且{an}的“L数列”为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d912747504ebb75aa4f4b04ba37bb6a.png)
(2)若an=n+k﹣3(k>0),且{an}的“L数列”为递增数列,求k的取值范围;
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a0bda3aab83e85ba07b7b5d06f9f8c.png)
您最近一年使用:0次
2021-10-22更新
|
363次组卷
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5卷引用:数学-6月大数据精选模拟卷01(上海卷)(满分冲刺篇)
(已下线)数学-6月大数据精选模拟卷01(上海卷)(满分冲刺篇)(已下线)考向18 数列不等式-备战2022年高考数学一轮复习考点微专题(上海专用)江苏省南京市2020届高三下学期6月第三次模拟考试数学试题江苏省苏州第十中学2021-2022学年高二上学期10月段考数学试题江苏省苏州市第十中学2022-2023学年高二数学10月阶段检测数学试题
名校
4 . 已知
为正整数且
,将等式
记为
式.
(1)求函数
,
的值域;
(2)试判断当
时(或2时),是否存在
,
(或
,
,
)使
式成立,若存在,写出对应
,
(或
,
,
),若不存在,说明理由;
(3)求所有能使
式成立的
(
)所组成的有序实数对
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4453bbb9a40370d1d5a8d907cdd0871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ae63a0c0acfc5ae8e14f30fcf598ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e4f4cdf657500fed38fa4756e95a04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3572a2b2a8a45ed9008bdb0e6690a7ea.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9811459b0dc50d72adef6113b341c735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70be4f6136b0b0d4ba1a4a810d511cb3.png)
(2)试判断当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.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/3572a2b2a8a45ed9008bdb0e6690a7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
(3)求所有能使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3572a2b2a8a45ed9008bdb0e6690a7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de590fc36bbb76a985bcb4177a1c84f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71000584218adb867748f8484a9c827d.png)
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5 .
满足
,
.
(1)求出
与
的差;
(2)证明:
;
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14835bf3f00139ccec0694d0924db795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9125d2c9fbc1aaebe57bf1903b755b8.png)
(1)求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c89554d42bf29e4dcf1c455c5247502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d353c0a54506b43ed540c187414de7.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0205fda531f4429827bf7a51f627d732.png)
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