题目
题型:不详难度:来源:
(1)求动点
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174652-90658.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174652-59042.gif)
(2)已知圆
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174652-73427.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174652-27697.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174652-73427.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174652-59042.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174652-73427.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174652-67634.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174653-68719.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174653-31684.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174653-27465.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174653-97411.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174653-92933.gif)
答案
(1)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174654-26514.jpg)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174654-43726.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174653-92933.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174654-38490.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174654-29272.jpg)
………………8分
由①、②解得,
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174654-79239.gif)
不妨设
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174655-25159.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174655-34312.gif)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174655-13527.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174655-47144.gif)
∴
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174655-95445.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174655-89627.gif)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174655-53454.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174656-87869.gif)
当且仅当
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174654-43726.gif)
当
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174656-99788.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174656-75188.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174656-62125.gif)
故当
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174654-43726.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174653-92933.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174654-38490.gif)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174613-30832.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174613-90091.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174613-28609.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174613-78893.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174614-52862.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174614-63402.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174614-97680.jpg)
A.![]() | B.![]() ![]() | C.![]() | D.![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174608-76748.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174609-93278.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174609-28615.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174609-85777.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174609-73237.gif)
A.
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174610-33943.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174610-88072.gif)
C.
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174610-71683.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174610-23498.gif)
如图,已知
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174537-42555.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174537-74324.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174537-29004.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174537-72856.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174537-25966.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174537-36815.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174538-86921.gif)
(1)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174538-99678.gif)
(2)若点
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174538-17461.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174538-55308.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174538-54943.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174538-89197.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174538-17503.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174538-91399.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174539-55944.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174539-63576.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174539-35555.gif)
(3)用
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174539-82636.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174539-43527.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174539-35555.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174539-37229.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174539-73718.gif)
如图,在平面直角坐标系
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174515-84324.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174515-31290.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174516-34061.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174516-25423.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174516-81832.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174516-22924.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174516-47720.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174517-27071.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174517-56441.gif)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174517-22360.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174517-99330.gif)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174517-79514.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174516-47720.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174517-91613.gif)
(3)试问(2)的逆命题是否成立?说明理由.(4分)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174518-37038.gif)
已知直线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174453-77708.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174453-79222.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174453-77708.gif)
(1)若已知A点的坐标为
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174453-17767.gif)
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174454-50996.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174453-77708.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025174454-66722.gif)
最新试题
- 1对“物以稀为贵”这句话理解正确的是A.它否认了使用价值对价格的影响B.它承认了个别劳动对价格的影响C.它否认了价格变动对
- 2阅读下面的文言文,完成问题。 乐毅者其先祖曰乐羊乐羊为魏文侯将伐取中山魏文侯封乐羊以灵寿乐羊死葬于灵寿其后子孙因家焉中
- 3黑火药是我国古代四大发明之一。 黑火药的主要原料是木炭、硝石和硫黄,黑火药燃烧发生反应的化学方程式为S+2KNO3+3C
- 4(10肇庆市3).实验测得人体内一些液体pH如下,其中酸性最强的是( )A.唾液6.6~7.1 B.胃液0.9~1.
- 5某校初一学生为灾区捐款,(1)班捐款为初一总捐款的,(2)班捐款为(1)班、(3)班捐款数的和的一半,(3)班捐了380
- 6在家庭用电中,如果闭合开关后,灯泡不亮,可能的原因有:①灯泡的灯丝断了;②灯头的电线断了;③灯头、开关头处接触松动.从电
- 7【题文】“天宫二号”是我国研发的第二个空间实验室,预计2015年前后在酒泉卫星发射中心发射,结合所学知识回答各题。【小题
- 8在一个红色不透明的盒子中放有四张分别写有数字1,2,3,4的红色卡片,在一个蓝色不透明的盒子中放有三张分别写有数字1,2
- 9下图是甲、乙两城市人口增长图,代表了两种不同类型的国家,据此回答下题:小题1:关于这两种类型国家的叙述,正确的是
- 10NH4HCO3是一种离子化合物,下列关于该物质的叙述错误的是 A.所含四种元素的原子半径由小到大的顺序为:H<O<N<C
热门考点
- 1为了净化空气,某科研单位根据实验得出,在一定范围内,每喷洒1个单位的净化剂,空气中释放的浓度y(单位:毫克/立方米)随着
- 2兔是植食性动物,它的消化系统与人的消化系统相比,区别在于A.兔的牙齿没有分化B.兔的口腔内没有唾液腺C.兔的盲肠发达D.
- 3如果你想了解蜜蜂的结构特点和生活习性,应从下列哪本书中查找比较方便( )A.生物学B.节肢动物学C.软体动物学D.脊椎
- 4下列对马克思主义哲学中物质范畴的认识正确的有①物质是指自然界、人类社会中各种物质具体形态的集合 ②物质是不依赖于人的意识
- 5施用氮肥能使农作物叶色浓绿,以下化肥中属于氮肥的是 A.NH4NO3B.K2SO4C.C
- 6若,则( )A.B.C.D.
- 7(1)氦气 ____ ;(2)1个氢离子 ____ ;(3)3个氮分子 ____ ;(4)硝酸钾 ____ ;(5)2个
- 8如图,某测绘装置上一枚指针原来指向南偏西50°,把这枚指针按逆时针方向旋转周,则结果指针的指向是[ ]A.南偏东
- 9下列不属于光的折射现象的是:[ ]A、池塘底看起来比实际要浅 B、夜晚,池塘水中有一个月亮的影子C、水中的筷子看
- 10“从1932年3月1日起,根据本法规定,一切输入联合王国的商品,除条文中规定的免除课税的商品外,一律课以相当于商品价值1