题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225618-46843.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225618-66551.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225618-28927.jpg)
(Ⅰ)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225618-18373.png)
(Ⅱ)过点
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225618-60120.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225619-18864.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225619-89163.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225619-32043.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225619-32575.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225620-99556.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225620-94627.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225620-18839.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225620-40945.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225619-18864.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225618-18373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225620-21714.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225619-18864.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225621-99067.png)
解析
试题分析:(Ⅰ)由已知,椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225618-46843.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225618-66551.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225621-83281.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225621-28771.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225621-62376.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225622-16168.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225618-18373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225619-18864.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225622-83410.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225622-27637.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225619-18864.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225622-39605.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225623-73682.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225619-18864.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225623-23819.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225623-62395.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225620-21714.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225623-38442.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225623-42361.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225624-20889.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225624-10768.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225624-94746.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225624-45512.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225624-45512.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225619-18864.png)
试题解析:(Ⅰ)由已知得
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225621-83281.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225624-47612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225618-18373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225620-21714.png)
(Ⅱ)①当直线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225619-18864.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225622-83410.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225622-27637.png)
②当直线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225619-18864.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225622-39605.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225623-73682.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225619-18864.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225623-23819.png)
将
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225623-62395.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225620-21714.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225623-38442.png)
则
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225625-61298.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225625-64440.png)
又
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225624-20889.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225624-10768.png)
所以,
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225625-55985.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225625-21419.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225626-73305.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225626-45148.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225626-43462.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225626-95881.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225626-44705.png)
令
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225627-38090.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225627-14720.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225627-75650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225627-49805.png)
所以当且仅当
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225628-13788.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225628-58932.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225619-18864.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225621-99067.png)
核心考点
试题【已知椭圆:的左、右焦点和短轴的两个端点构成边长为2的正方形.(Ⅰ)求椭圆的方程;(Ⅱ)过点的直线与椭圆相交于,两点.点,记直线的斜率分别为,当最大时,求直线的方】;主要考察你对曲线与方程的应用等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225608-24823.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225609-73036.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225609-11099.png)
(Ⅰ)求矩阵
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225609-42945.png)
(Ⅱ)求矩阵
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225609-42945.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225554-66675.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225554-25195.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225554-46658.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225554-25195.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225554-37173.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225555-92969.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225555-93154.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225555-33160.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225555-44871.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225556-76270.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225556-31796.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225556-69373.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225556-56807.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225557-48622.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225557-69876.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225557-88836.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225557-20073.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225557-89190.jpg)
(1)以
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225558-75904.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225558-70263.png)
(2)根据条件可判定点
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225557-20073.png)
(3)设线段
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225555-33160.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225558-76855.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225558-13924.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225559-45342.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225556-76270.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225558-76855.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225559-92910.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225559-97120.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225536-16927.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225536-29836.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225537-49945.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225537-10920.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225537-79551.png)
(1)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225537-10920.png)
(2)设椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225537-10920.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225537-17274.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225538-75653.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225537-10920.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225537-17274.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225538-17329.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225538-27433.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225538-20378.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225538-12510.png)
(3)在椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225537-10920.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225539-57318.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225539-14998.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225539-48911.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225539-54525.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225540-50127.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225540-17806.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225540-50127.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225532-88852.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225532-87395.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225532-60728.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225532-70744.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225526-72235.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225526-45418.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225526-84797.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025225527-56085.png)
A.至多一个 | B. 2个 | C. 1个 | D.0个 |
最新试题
- 1生活处处有物理,只要你留心,身边的许多物品都可以用来做物理小实验,现有一个矿泉水瓶、一块海绵、适量的水,请利用这些物品设
- 2The ability _______ an idea is as important as the idea itse
- 3已知M(2,1),N(-1,2),在下列方程的曲线上,存在点P满足|MP|=|NP|的曲线是( )A.3x-y+1=0
- 4(1)解方程:x2-3xx2-1+2x-1x-1=0;(2)计算:|3-2|+(15)0-2-1+2sin60°
- 5下列各组中的两种化合物,所含化学键类型和化合物类型完全相同的是A.Na2O 和Na2O2B.CaCl2和 Na2S C.
- 6模仿和创新相结合是日本民族的一大特色,主要体现为“汉化”和“欧化”。其中“汉化”是指A.《汉谟拉比法典》 B.大化
- 7在下列哪次会议上提出战后成立联合国[ ]A.巴黎和会B.华盛顿会议C.雅尔搭会议D.慕尼黑会议
- 8如图所示,有一个圆桶形容器的底面直径d=3m,桶高h=1m,桶底的圆心S点有一小突起.当桶内不装液体时,人从右边某位置沿
- 9如果最简二次根式1+a与4a-2是同类二次根式,那么a=______.
- 10选择方框中动词词组的适当形式填空。is famous for, taking care of, be made of
热门考点
- 1一个有耳垂(Aa)的男性和一个无耳垂(aa)的女性结婚,生下有耳垂子女的概率是( )A.100%B.75%C.50%D
- 2对于中学生上网人们有不同的看法。请你以“Going Online”为题,根据下表所提供的信息,谈谈自己的看法(100词左
- 3某经济开发区将钛冶炼厂与氯碱厂、甲醇厂组成了一个产业链(如图所示),大大地提高了资源利用率,减少了环境污染.请填写下列空
- 4实验目的:探究(一)同周期元素性质的递变规律探究(二)影响化学反应速率的因素供选试剂:锌片、锌粉、铁片、铁粉、镁条、铝条
- 5为了规范淘宝网卖家经营行为,稳定网上市场交易秩序,淘宝网进行搜索规则调整,却遭到极少数游走在规则边缘不法卖家的污蔑攻击,
- 6(13分)阅读材料,结合所学知识回答问题。材料一 总而言之,国共合作主导下的国民革命,是一场更富有现代意义上的社会革命
- 7沿着圆周放着一些数,如果有依次相连的4个数a,b,c,d满足不等式(a-d)(b-c)>0,那么就可以交换b,c的位置,
- 8在容积相同的甲、乙两个密闭容器中,分别充入1 mol N2和3 mol H2,使它们在同温下反应,并达到平衡。若甲容器保
- 9I live in______ is called Shenzhen, which is really a modern
- 10双眼皮和单眼皮是一对相对性状,双眼皮由显性基因B控制,单眼皮由隐性基因b控制。一对夫妇都是双眼皮,子女却为单眼皮,这对夫