名校
1 . 出租车几何学是由十九世纪的赫尔曼·闵可夫斯基所创立的.在出租车几何学中,点还是形如
的有序实数对,直线还是满足
的所有
组成的图形,角度大小的定义也和原来一样,直角坐标系内任意两点
定义它们之间的一种“距离”:
,请解决以下问题:
(1)求线段
上一点
到点
的“距离”;
(2)定义:“圆”是所有到定点“距离”为定值的点组成的图形,求“圆”上的所有点到点
的“距离”均为
的“圆”方程,并求该“圆”围成的图形的面积;
(3)若点
到点
的“距离”和点
到点
的“距离”相等,其中实数
满足
,求所有满足条件的点
的轨迹的长之和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f6e1f67dc15c3cf135a78af95c70fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a1467ecf286e3cadaf5aa006606f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f3b9b08dfe2295ed8f97d05b2ae9dd.png)
(1)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0979974cb162bd78caf4ef46b379ccbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08cec13dec8afb62deac170397efc604.png)
(2)定义:“圆”是所有到定点“距离”为定值的点组成的图形,求“圆”上的所有点到点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8544f8483269db90305fa747eeac8b4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9a016fd7021b9e9625c8d5f0938ad6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ca979687ffb2214e747525635a6912c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9a016fd7021b9e9625c8d5f0938ad6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41b80ac9ca466eb94c7e0354f9cacb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c0dcf4409773fe13d1a803bf1e25cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
名校
2 . 已知函数
.
(Ⅰ)当
时,函数
在区间
上的最小值为-5,求
的值;
(Ⅱ)设
,且
有两个极值点
,
.
(i)求实数
的取值范围;
(ii)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/616d615881fea181c6bf6cdd614690a6.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0b6ca237b90b49a91d9d74d007efdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e494fd11bcc9b83a48ecbc0513c7f81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
(i)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(ii)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3661dbd3b2c578c685e6a11a4102ddd.png)
您最近一年使用:0次
2019-04-20更新
|
1970次组卷
|
5卷引用:贵州省凯里市第一中学2019届高三下学期模拟考试《黄金卷三》数学(理)试题
贵州省凯里市第一中学2019届高三下学期模拟考试《黄金卷三》数学(理)试题2020届陕西省西安交大附中学南校区高三上学期期中数学(理)试题2020届浙江省温州市新力量联盟高三上学期期末数学试题(已下线)专题10 导数与函数的极值、最值-冲刺2020高考跳出题海之高三数学模拟试题精中选萃(已下线)专题03 利用导数求函数的极值、最值(第六篇)-备战2020年高考数学大题精做之解答题题型全覆盖
3 . 定义:记
为
这
个实数中的最小值,记
为
这
个实数中的最大值,例如:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8774803290fd7e2b8e5aaded3878e87.png)
,
.
(1)若
,求
、
的值;
(2)已知
,求
的最小值;
(3)若
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/956a34a1f40a8e5ca429db56154a1302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe1c31a81f198c443e71b83ca662939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5492f8c6f6ffc3412d316727333a940a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe1c31a81f198c443e71b83ca662939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8774803290fd7e2b8e5aaded3878e87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a2b3b0ca12bc39549b0c3843c1dee61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a6be5ce078006dc2e59d419359e171f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b191787f1c8f50f09fcfdd4f54ad58a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54b6a060d6c51a328341df76013bd89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e1a1611f320c0f358df77aaae3f942.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b6487aab21104fcbe96f0ed5675c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db2887bd776156165be9e747cf43b4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
您最近一年使用:0次
4 . 定义在R上的函数
满足:
i.对任意的实数x、y有
;
ii.
;
iii.
在区间
上为增函数.
(1)求
、
、
的值;
(2)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
i.对任意的实数x、y有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d542cc432e36fcc317f799c5c81e67b.png)
ii.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed670b1f668778c6243f3f7470ee7d2.png)
iii.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e38fffbc7ab9882480f4faa72390e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a32822a106d217ffdec43557a236f786.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d55ef0d1b7ea88d92fd6e1ecebb5f5.png)
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d8db8a05b3ec7312f6ac8b64a07.png)
您最近一年使用:0次
5 . 椭圆
与双曲线
有公共焦点(±c,0)(c>0),
与
的离心率之差不超过1,且
有一条渐近线斜率不小于
与x轴正半轴分别交于点A、B,且两曲线在第一象限的交点为D.问:△ABD的面积是否有最大值?若有,求出最大值并给出
的方程;若没有,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4b3b367fa6c2990b4fff4792a4ca6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880248fa1259b2600a87f09a61287d44.png)
您最近一年使用:0次
6 . 已知函数
,的图像有两条公切线,且由这四个切点组成的四边形的周长为6,求实数a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a041ce479f5f3db1320e3c688f8285f1.png)
您最近一年使用:0次
7 . 在锐角△ABC中,证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3a6fee9844f45a36dc502a971d4d136.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3a6fee9844f45a36dc502a971d4d136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e8d4107d946839ec6e9a148a40c0cc.png)
您最近一年使用:0次
8 . 设实数a、b、c、d满足
.
证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/100bc5b10518bb795a454aa5aa68e972.png)
证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5220a284c69f4c0f380db865cfd84088.png)
您最近一年使用:0次
9 . 矩形的两条邻边长为
、
(
),一直线截矩形所截得的直角三角形的周长为
.求矩形余下部分面积的最小值.
![](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/3798d6c2e5eac9c1d8b044efd5081acf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次