在数学中,由
个数
排列成的m行n列的数表
称为
矩阵,其中
称为矩阵A的第i行第j列的元素.矩阵乘法是指对于两个矩阵A和B,如果4的列数等于B的行数,则可以把A和B相乘,具体来说:若
,
,则
,其中
.已知
,函数
.
(1)讨论
的单调性;
(2)若
是
的两个极值点,证明:
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e70354d6ca5ad9f6b4592fac0b5e559.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db452ec3c9e60109fdfe9fae8e456edf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc970ba32a45946c514e98eac1e80ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e70354d6ca5ad9f6b4592fac0b5e559.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37a14c188b1c9d61aa237b137ba18023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16a9a7e6a7ff34bb72659677929bf9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7cf279527982a84842a2d6a4f212892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b65887e38142a10f30be2296310d1a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9408afcaa76f52987ca43733b828f66a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01f44187cd898fb01a4f8fa76bdc6cdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8d8e4e3f777270997845f7d9cfe85f.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b3db0fe99d90b9a693562dd988eca5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def4d3923ea803696106f42140e83bf4.png)
2024·山东泰安·模拟预测 查看更多[3]
山东省泰安市2024届高三四轮检测数学试题江西省宜春市宜丰中学2023-2024学年高二下学期6月月考数学试题(已下线)高二数学期末模拟试卷01【好题汇编】-备战2023-2024学年高二数学下学期期末真题分类汇编(北师大版2019选择性必修第二册)
更新时间:2024-06-19 07:37:53
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解答题-证明题
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较难
(0.4)
名校
解题方法
【推荐1】已知函数
,
.
(1)求证:
时,
;
(2)当
时,
恒成立,求实数a的取值范围;
(3)当
时,
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbbdd006d6c6aa4c00282f564718a03a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2301e363823ccab6115c2056267ce398.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4138f6987cd2ee9e56b2ac80e84f9e24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2e0bb6d63b7bcaee92a470d58cc399.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df87d8d4aefc2c4bd05a90af35bae61a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df87d8d4aefc2c4bd05a90af35bae61a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c9fa997a4b12de87eeb6cb2ca239a4.png)
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【推荐2】给定函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73ea4dd3e394e66224e114eeb429feb2.png)
(1)试求函数f(x)的单调减区间;
(2)已知各项均为负的数列{an}满足,
,求证:
;
(3)设bn
,Tn为数列 {bn} 的前n项和,求证:T2012﹣1<ln2012<T2011.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73ea4dd3e394e66224e114eeb429feb2.png)
(1)试求函数f(x)的单调减区间;
(2)已知各项均为负的数列{an}满足,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33fe364f09bdeba610b00044b9c11ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa37444f208f37feb3274a15c609b98.png)
(3)设bn
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db9d9e20811497b51a68a7577c54c2bd.png)
您最近一年使用:0次
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(0.4)
解题方法
【推荐1】已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)讨论
的单调性;
(2)若
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是函数
的两个不同零点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a6fede16dcb2ed5a46604e318ae7079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](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/4fe7d5809da02c15a43a0e9a898b9086.png)
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您最近一年使用:0次
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【推荐2】已知函数
.
(1)讨论
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03c91e86b5734b38af68cdee7ff4dfb0.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec72ca557aa4229ee871628ffcf0d8a0.png)
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【推荐3】已知函数
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(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80237cf0eadc0cb018335113245e6ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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