已知
,函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9ad18e288f14947a9d034d04daa20a4.png)
(Ⅰ)若函数
在
上为减函数,求实数
的取值范围;
(Ⅱ)设正实数
,求证:对
上的任意两个实数
,
,总有
成立
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9ad18e288f14947a9d034d04daa20a4.png)
(Ⅰ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27e0400d730672ae2110ff48786dd1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)设正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4849351d8372b1e402eb978ecf1fda67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e390f45a8413c7b10023ea0d6543ca0.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/15c9ed8ccbbb2afecdc8e740ad42c32a.png)
2019·河南濮阳·一模 查看更多[5]
【市级联考】河南省濮阳市2019届高三5月模拟考试数学(理)试题河北省正定中学2019-2020学年高三下学期第四次质量检测数学(理)试题重庆市凤鸣山中学校2021届高三上学期10月月考数学试题(已下线)专题16 导数妙解极值点偏移、双变量问题-备战2022年高考数学一轮复习一网打尽之重点难点突破重庆市西北狼教育联盟2022届高三上学期开学质量检测数学试题
更新时间:2019-05-18 06:37:27
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相似题推荐
解答题-问答题
|
困难
(0.15)
【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7507c1d5b6828fe3d60d88d45aa4df49.png)
(1)若函数
在
上递减,在
上递增,求实数
的值.
(2)若函数
在定义域上不单调,求实数
的取值范围.
(3)若方程
有两个不等实数根
,求实数
的取值范围,并证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7507c1d5b6828fe3d60d88d45aa4df49.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f1a4e3b33590983f3ff61ebc19303e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06b84c8236ceb7d8749aa146ce5181b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1ecc6b4dc01e6804c378f776657a8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b725fdc8de9800f2692f6fea8585b1e9.png)
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解答题-证明题
|
困难
(0.15)
解题方法
【推荐2】已知函数
.
(1)若
在其定义域内单调,求实数a的取值范围;
(2)若
,
的极大值为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d67566a18ed29b9442d52ff91f80a2ff.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2480f87a11c4cd450bc9454ea7276722.png)
您最近一年使用:0次
解答题-问答题
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困难
(0.15)
名校
解题方法
【推荐1】设函数
,
,其中
.
(1)若
,证明:当
时,
;
(2)设
,且
,其中
是自然对数的底数.
①证明
恰有两个零点;
②设
如为
的极值点,
为
的零点,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54ab2ab03be596b8b6ad32cf52f82169.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80007e8cae924f368680b0acab45759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf84b70603802c69bdb5de2f6fe3a66.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb041ee953f9df3fc3868b3598fc122e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f2e8dcd48e0bf8a767ef5cd3532c931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
①证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2316563595e29fd4279845ab8afc5ba2.png)
②设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2316563595e29fd4279845ab8afc5ba2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2316563595e29fd4279845ab8afc5ba2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64df36fd0b37b72d36fe21e10f5d67f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/016c2e362804ae775dd70c7c52d2ba8b.png)
您最近一年使用:0次
解答题-证明题
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困难
(0.15)
【推荐2】已知函数
,其中
,
在
及
处取得极值,其中
.
(1)求证:
;
(2)求证:点
的中点
在曲线
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613dd40b05813eb1b688c890c6a9e978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655014aa633dbd4d41e7724e7a7d5364.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b794b9661e9fea21b9b9b677e8689b3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f7b16d65f1b2b8bea8cf4a83fde925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29506a6912c0dce7692a673600a30122.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be01087486cda61fd9e2f890c0028c1c.png)
(2)求证:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619afd3bbc81d29122afa1bddd07f9f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
您最近一年使用:0次