名校
解题方法
1 . 已知函数
.
(1)求不等式
的解集;
(2)设函数
的最小值为
,若
且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/113eff4fc6357344d826ff081714339d.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a075dce77c9a6b964a8a3fc1ee6e8c.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd517c952785f1b4a87a0ff47260e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711d33dca588abbd3e2bead7ec99a384.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/576e3d63873b53cc17f79139e674308b.png)
您最近一年使用:0次
2024-02-05更新
|
847次组卷
|
7卷引用:陕西省安康中学等校2023-2024学年高三上学期1月大联考文科数学试题(全国乙卷)
2024·全国·模拟预测
2 . 已知
.证明:
(1)当
时,
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b8b32dd4e8910769e4176362d7b40b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e84dbb03e8c627ff11d5c7aeb0c8b5.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd7ad23e894950eb21a3da9f40433e6f.png)
您最近一年使用:0次
解题方法
3 . 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
解题方法
4 . 已知关于
的不等式
对任意实数
恒成立.
(1)求实数
的取值范围;
(2)记实数
的最小值为
,若
均为正实数,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9800cf038376bb0c550ea354af615924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)记实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f781b9233eccd93276a9c333c604a4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea10079b6346e90ba3818727244ce44a.png)
您最近一年使用:0次
2023-05-16更新
|
284次组卷
|
2卷引用:贵州省贵阳市2023届高三3+3+3高考备考诊断性联考(三)数学(文)试题
5 . 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)
您最近一年使用:0次
6 . 已知数列
的前
项和为
,满足:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c5d620bdc7498cff66250db633b788.png)
(1)求证:数列
为等差数列;
(2)令
,数列
的前
项和为
,若不等式
对任意
恒成立,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/42c5d620bdc7498cff66250db633b788.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25cbe66fe4e84b4022721122baab4a3.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f052af7ec6eabf99cbea5543397cd1d5.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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6892586ad3007e4814d2666fcc6e0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-04-26更新
|
500次组卷
|
2卷引用:辽宁省锦州市渤海大学附属高级中学2023届高三第六次模拟考试数学试题
解题方法
7 . 已知正数a,b,c满足
.
(1)求证:
;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97329aef876eccf180e451ef9b2d2137.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0aa09e470e9dd3923539ab0f3251f9b.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6df426c93bf3b57c8c788b57c3f947.png)
您最近一年使用:0次
2022-06-06更新
|
1166次组卷
|
12卷引用:河南省开封市联考2022届高三下学期核心模拟卷(中)(一)数学理科试题
河南省开封市联考2022届高三下学期核心模拟卷(中)(一)数学理科试题河南省洛阳市2023届高三二模理科数学试题河南省洛阳市2023 届高三考前综合练习题理科数学(二)试题(已下线)2022年全国高考甲卷数学(文)试题变式题13-16题(已下线)2022年全国高考乙卷数学(理)试题变式题13-16题(已下线)2022年全国高考乙卷数学(文)试题变式题13-16题(已下线)专题19 不等式选讲(已下线)2022年全国高考甲卷数学(文)试题变式题21-23题(已下线)2022年全国高考乙卷数学(理)试题变式题21-23题(已下线)2022年全国高考乙卷数学(文)试题变式题21-23题江西省南昌市2022届高三下学期核心模拟卷(中)数学(文)试题江西省南昌市2022届高三下学期核心模拟卷(中)数学(理)试题
名校
8 . 已知数列
的首项
,且
.
(1)求证:数列
是等比数列;
(2)设
,求使不等式
成立的最小正整数n.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/237dee2723a87e96deabc09c32b2707b.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c895d4ce5ce82ef9b311b9369b4de11.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c3a0aee147f923699f8aabd951fbbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98eed21ddd1128bf63f2417f868048e3.png)
您最近一年使用:0次
2022-03-06更新
|
1812次组卷
|
4卷引用:四川绵阳市2022-2023学年高三二诊模拟考试(3)理科数学试题
四川绵阳市2022-2023学年高三二诊模拟考试(3)理科数学试题黑龙江省鸡西实验中学2020-2021学年高中教师命题大赛数学试题河北省邯郸市大名县第一中学2023届高三下学期2月月考数学试题(已下线)4.3.1 等比数列的概念(同步练习)-【一堂好课】2022-2023学年高二数学同步名师重点课堂(人教A版2019选择性必修第二册)
名校
9 . 已知函数
.
(1)当
时:
①解关于
的不等式
;
②证明:
;
(2)若函数
恰有三个不同的零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca766a161f9438aef446b1beb7de3c4.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
①解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d80a96345f600468f0efb316ccd586.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1048afd2ea59732a2119a2863ed77b2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-01-11更新
|
1233次组卷
|
4卷引用:新疆维吾尔自治区疏勒县2022届高三第一次调研测试数学试题
名校
10 . 已知
、
、
均为正实数.
(1)若
,求证:
;
(2)若
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d6fae71c162e7be027a9b30a9187813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91dc97f78d372af5df76e608119373f5.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/626e3c584a6a5f7ed695e59b1844c254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
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2020-10-28更新
|
450次组卷
|
4卷引用:四川省绵阳中学2023届高三适应性考试(三)理科数学试题
四川省绵阳中学2023届高三适应性考试(三)理科数学试题湖南省长沙市湖南师大附中2020-2021学年高一上学期第一次大练习数学试题(已下线)第二章 一元二次函数、方程和不等式 专题01 基本不等式的常见用法- 2021-2022学年“高人一筹”之高一数学“痛点”大揭秘(人教A版2019必修第一册)湖南省邵阳市邵东市第一中学2022-2023学年高一上学期第一次月考数学试题