解题方法
1 . 已知函数
,给出下列四个结论:
①函数
是奇函数;
②
,且
,关于x的方程
恰有两个不相等的实数根;
③已知
是曲线
上任意一点,
,则
;
④设
为曲线
上一点,
为曲线
上一点.若
,则
.
其中所有正确结论的序号是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d08e4a96cfcea8a303b56b35cafb47fb.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48b10c7c83af99e5686133623e29c455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23899cffeb0d20e29e7212a7327c604a.png)
③已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/482ad28bbcbe8b8d384d84851a54386b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f614a56621170153a1a1c582a145ba.png)
④设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/793894c733026e3f5900b31538fcb731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2dff006a89ed43e44492206e8516e7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc3d36c7faa45fe5dae65a800cb59c19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778083c63e464acd369abc5e667c8d74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f850a3ec66b1438ca4da2c30b6939ea9.png)
其中所有正确结论的序号是
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名校
解题方法
2 . 如图矩形
,沿
对折使得点
与
边上的点
重合,则
的长度可以用含
的式子表示,那么
长度的最小值为( )
![](https://img.xkw.com/dksih/QBM/2022/6/4/2994205804060672/2995511303168000/STEM/14494e4e-c2b6-41c3-b53a-13d4b96795ba.png?resizew=208)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9e911e0723d062e33a36ce531687294.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://img.xkw.com/dksih/QBM/2022/6/4/2994205804060672/2995511303168000/STEM/14494e4e-c2b6-41c3-b53a-13d4b96795ba.png?resizew=208)
A.4 | B.8 | C.![]() | D.![]() |
您最近一年使用:0次
2022-06-06更新
|
1160次组卷
|
6卷引用:北京大学附属中学2022届高三三模数学试题
北京大学附属中学2022届高三三模数学试题北京卷专题12导数及其应用(选择填空题)北京卷专题07解三角形(选择填空题)(已下线)考向16 利用导数研究函数的极值与最值(重点)(已下线)专题12 三角函数-备战2023年高考数学母题题源解密(全国通用)(已下线)专题13 导数及其应用
3 . 已知函数
.
(1)求函数
的单调区间;
(2)是否存在
,对任意
,总存在
,使得
成立?若存在,求出实数
的值;若不存在,请说明理由;
(3)若函数
在
上单调递减,且存在非零实数
,
满足
,
,
依次成等差数列,求证:
;
(4)已知函数
有两个不同的零点
,
和一个极值点
,记
,
,
,试判断
是否可能为等腰直角三角形?若是,求实数
的值;若否,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23635136fb308a289f2cbb904b08aadc.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9bc8f11fd77a832e2f16e0387523c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a49684ba67f71171321586f1a77ad4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f8f79e938bf77f67440579ad10cb82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.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/dc9769116ec47353514e6b7fb7b17216.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e38fffbc7ab9882480f4faa72390e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/542893790445d6d888d9ff91fd215c9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a415767156945ea8ada9ed3756019fc.png)
(4)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45dddee525114c09ee0d1205aed6e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3b54e0dcdc081d45fb3df933cddc29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b44e76888786f4dc12acc99538e7fe21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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