解题方法
1 . 数值线性代数又称矩阵计算,是计算数学的一个重要分支,其主要研究对象包括向量和矩阵.对于平面向量
,其模定义为
.类似地,对于
行
列的矩阵
,其模可由向量模拓展为
(其中
为矩阵中第
行第
列的数,
为求和符号),记作
,我们称这样的矩阵模为弗罗贝尼乌斯范数,例如对于矩阵
,其矩阵模
.弗罗贝尼乌斯范数在机器学习等前沿领域有重要的应用.
(1)
,
,矩阵
,求使
的
的最小值.
(2)
,
,,矩阵![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880f9f9ab3fcb2dfdfc14d0ab8582fb9.png)
求
.
(3)矩阵
,证明:
,
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860fc1db2edc066188f8d24e35dbf205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/332153dce658c8cc26984e355b7c15ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23c529cf68fc1e9a4f9ab4dfbadcfe01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61bb39d4f4036ceed78844592288c408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37a14c188b1c9d61aa237b137ba18023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7600d2cfbdc6146db96cc545706004f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e5550d8659980c02488a57afd5964ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/747bedda3150eb258ffb25c923a47614.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c297fac2721a2c7bbaa60b0274dbc34f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de651a4843a0cdbf9e26e51f9c53e837.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83986d667f7618313804888470393a67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6abaf4851fb819b325eb5d21cd0260.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7013adffb807e769979945ba9aa0809.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83986d667f7618313804888470393a67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880f9f9ab3fcb2dfdfc14d0ab8582fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f922593fce42b4d7e592e51873aa2ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd8a93d9cf3359a0ad6106ea5360acb.png)
(3)矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6bed24376a5b1ea247ffb1552eaaf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83986d667f7618313804888470393a67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bcfc48f9bc23cc43085bdb910e7a136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62f823d5ffe45a61c388710e7a67fd02.png)
您最近一年使用:0次
名校
解题方法
2 . 已知函数
是定义在
上的奇函数,且
.
(1)求
,
的值;
(2)用定义法证明函数
在
上单调递增;
(3)若
对于任意的
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07911592d9cb6471a47b72f42769090c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad19d9b057bd7b2207dabe260e7bde86.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)用定义法证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a38ee327919f038aee27e552789c8a50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8326eccb6fccce4cad9ff889bf0febbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-08-17更新
|
1831次组卷
|
15卷引用:黑龙江省鸡西实验中学2023-2024学年高三上学期第一次考试数学试题
黑龙江省鸡西实验中学2023-2024学年高三上学期第一次考试数学试题四川省南充市第一中学2022-2023学年高一上学期11月月考数学试题(已下线)高一上学期期中考试解答题压轴题50题专练-举一反三系列吉林省长春汽车经济技术开发区第三中学2023-2024学年高一上学期10月月考数学试题云南省下关第一中学2023-2024学年高一上学期10月月考数学试题湖北省荆州市沙市中学2023-2024学年高一上学期10月月考数学试题(已下线)专题02 高一上期中真题精选-期中考点大串讲(人教A版2019必修第一册)广东省中山市龙山中学2023-2024学年高一上学期10月月考数学试题广东省广州市第六十五中学2023-2024学年高一上学期期中数学试题四川省内江市第二中学2023-2024学年高一上学期期中考试数学试题(已下线)高一数学上学期期中考试模拟卷山东省淄博第七中学2023-2024学年高一上学期期中考试数学试题四川省成都市第二十中学校2023-2024学年高一上学期期中数学试题广东省江门市第一中学2023-2024学年高一上学期第二次段考数学试题(已下线)必修第一册综合检测(基础)-【优化数学】单元测试基础卷(人教A版2019)
3 . 已知函数
.
(1)求曲线
在点
处的切线方程;
(2)(ⅰ)若对于任意
,都有
,求实数
的取值范围;
(ⅱ)设
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/666d7a2f65ef947fd349ad36c48150f6.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)(ⅰ)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a3be5e468089b7ebb31ef39ca911798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f13cb28f745af51c1baaa352e8da38d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e156bd36aef172cb4e6360638aac4de6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9491c984a8d44bd6ce73ec490b2dc406.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fef2385ff37d27395b0e9a1b0cea808.png)
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解题方法
4 . 已知函数
,其中
.
(1)若
,求实数
的取值范围;
(2)证明:函数
存在唯一零点;
(3)设
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5faf097501529bae12117c6a9576f840.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3ce5820ca9e8f9b6398c2462d1396a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36825543013336c9df727bc51ff62c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921882a3b6a472935b3e9c7f5dcebddc.png)
您最近一年使用:0次
解题方法
5 . 已知二次函数
(
且
),其对称轴为
,函数
.
(1)当
时,求不等式
的解集;
(2)当
时,求函数
在区间
上的最小值和最大值;
(3)若函数
有两个零点
,
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b2b4532b787fc38f6d9921982a9df85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68072473a5106f93e3026d992859f7a1.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5e026a565c24617edc36f82fd85e63.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0530e48690edc3429da2d23c25151296.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0a8793c98cb6ae2d32e401874833a1.png)
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名校
6 . 设
的定义域是
,在区间
上是严格减函数;且对任意
,
,若
,则
.
(1)求证:函数
是一个偶函数;
(2)求证:对于任意的
,
.
(3)若
,解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff565afbddafe8625ef376d7eb3fa649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc2435121b2b68da22ba4662e5734c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/333cf846facfab1283527ebe48961a95.png)
(1)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)求证:对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5967cc62862986840af4dd29df4bcc41.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f8b235e47a99a065a102c259b81db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3059047431efe07f36b3fb319f709a78.png)
您最近一年使用:0次
2021-11-26更新
|
1208次组卷
|
5卷引用:专题03 函数的概念与性质(练习)-2
(已下线)专题03 函数的概念与性质(练习)-2上海市复旦大学附属中学2021-2022学年高一上学期期中数学试题(已下线)上海高一上学期期中【压轴42题专练】(2)重庆市南开中学2022-2023学年高一上学期12月月考数学试题(已下线)专题3-6 抽象函数性质综合归类(2) - 【巅峰课堂】题型归纳与培优练
解题方法
7 . 设等比数列
的公比为q,前n项和
.
(1)求q的取值范围;
(2)设
,记
的前n项和为
,试证明
,并比较
和
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99fc431512fd3a56a063d70bfcd43a43.png)
(1)求q的取值范围;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db01f7e440d5041026c3b3820d25e397.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/f33406958b8035039dab4fb4c1c20b08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
18-19高一上·上海浦东新·期中
名校
8 . 已知集合
,
,集合
,且集合
满足
,
.
(1)求实数
的值;
(2)对集合
,其中
,定义由
中的元素构成两个相应的集合:
,
,其中
是有序数对,集合
和
中的元素个数分别为
和
,若对任意的
,总有
,则称集合
具有性质
.
①请检验集合
与
是否具有性质
,并对其中具有性质
的集合,写出相应的集合
和
;
②试判断
和
的大小关系,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97b6e6193c97593e74d8488e35119d07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6228afd8854fbc3c1b05fcb0bfc5ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92f15cabdc3d05988fd14408ee71a57f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/725e7e04c2a89481457c20d6438dab0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f75ed8f6ace26756031eb3d813db6c0.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)对集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/692caeb314d16479c83b584c14b556bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c6ea62c5decc77abe0039fb6e4fd40a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b2fef18cae151fadca86595209c317c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2212c2e3f325683a2f9599a1c661ff59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc020b0997a2f37b214718112b79d8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a2cacc52ffe015e828a4a5f2fe5ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
①请检验集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709a1f33195ab62f2da488b27a219c25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c67b05f5f43a2d4371a42e65dea900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
②试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次