题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131655-57509.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131655-34149.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131655-13791.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131655-23930.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131655-16177.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131656-40436.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131656-34575.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131656-12491.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131656-72954.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131656-55766.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131656-28600.png)
(1)求椭圆的方程;
(2)当直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131655-23930.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131656-65584.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131656-64901.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131655-23930.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131656-93307.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131657-61940.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131657-85643.png)
解析
试题分析:(1)将点
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131657-19358.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131657-48054.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131657-57503.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131658-34000.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131658-41640.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131658-42118.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131658-68327.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131658-52009.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131655-23930.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131658-93968.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131658-81310.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131659-85309.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131656-28600.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131659-62083.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131659-38275.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131659-61165.png)
(1)∵
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131659-22859.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131658-41640.png)
∴椭圆的方程为
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131657-61940.png)
(2)依题意,设
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131655-23930.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131658-93968.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131700-85785.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131700-85315.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131700-26650.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131700-99716.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131701-91493.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131701-57086.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131701-34291.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131701-93984.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131657-85643.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131636-10981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131636-33584.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131636-41830.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131636-14601.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131637-96010.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131637-80494.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131637-13477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131637-30455.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131637-87343.png)
(1)求证:当
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131637-52257.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131637-70065.png)
(2)若当
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131637-52257.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131638-46711.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131637-13477.png)
(3)在(2)的椭圆中,当
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131637-96010.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131637-80494.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131637-13477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131638-92967.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131637-96010.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131637-80494.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131638-73291.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131632-77841.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131632-19504.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131606-15534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131606-42428.png)
(1)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131606-15534.png)
(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131606-74599.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131607-57076.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131606-15534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131607-11532.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131607-19972.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131607-40843.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131607-67074.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131608-28192.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131600-31133.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131600-15676.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131600-85100.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131600-41298.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131601-63824.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131600-41298.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131601-65167.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131601-53122.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131601-75831.png)
A.
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131601-41787.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131602-91655.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131602-58594.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131602-47919.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131552-41474.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131553-91317.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023131553-78668.png)
A.![]() | B.![]() | C.3 | D.2 |
最新试题
- 1资料分析1884年,原产于南美洲委内瑞拉的风眼莲(又名水葫芦)被送到了美国新奥尔良的博览会上,来自世界各国的人见其花朵艳
- 2“好花终须绿叶扶”“一枝独秀不是春,万紫千红才是春”,这些说法最能说明新中国实行哪一项民主政治制度的必要性[ ]
- 3【理科】将标号为1,2,…,10的10个球放入标号为1,2,…,10的10个盒子里,每个盒内放一个球,恰好4个球的标号与
- 4Disappointed, I was about to leave ____ something occurred,
- 5下列算式中正确的是( )A.B.C.D.
- 6一块石砖长20cm,宽10cm,厚5cm.将其先后平放,竖放在水平桌面上,两次对水平桌面产生的压强之比是______.
- 7“嫦娥奔月,举国欢庆”,据科学计算,运载“神六”的“长征二号”系列火箭,在点火第一秒钟通过的路程为2 km,以后每秒钟通
- 81. To save time. I suggest taking a _______(直达的) flight to N
- 9要解决我国收人差距大的问题,还应该①消除收人差距,实现社会公平 ②提高劳动报酬在初次分配中的比重③强化税收调节,整顿分
- 10有资格代表北极地区的动物是( )A.海豹B.海象C.企鹅D.北极熊
热门考点
- 1往AgNO3和Cu(NO3)2的混合液中加入一定量的铁粉,充分反应后过滤,向滤渣中加入稀盐酸,无气泡产生.根据上述现象,
- 2---Can you speak French?---Yes, but only____.A.a littleB.lit
- 3爱因斯坦说:“我评定人的真正价值只有一个标准,即看他在多大程度上摆脱了‘自我’。”对这句话的正确理解是[ ]A.
- 4在下列变化①大气固氮②硝酸银分解③实验室制取氨气中,按氮元素被氧化、被还原、既不被氧化又不被还原的顺序排列,正确的是[
- 5(10大连32)下列变化中,善于化学变化的是 ( )A.胆矾研碎B.空气液化C.钢铁生锈D.电灯发光
- 6请在横线上用恰当的化学用语表示:(注:填化学式或元素或离子符号)(1)铝元素是________(2)2个镁离子
- 7“一国两制”中,实行资本主义制度的地区有:①香港 ②澳门 ③台湾 ④大陆 [ ]A、①B、①② C、①②③④ D
- 8修建宜万铁路时,选择架桥而不打过江遂道可以保护宜都到葛洲坝江段生活的珍稀动物( )A.白鳍豚B.娃娃鱼C.中华鲟D.扬
- 9在一家保险公司的董事会上,董事们就我国加入世界贸易组织(WTO)后公司的发展战略问题展开激烈讨论,其中一个议题是如何借鉴
- 10阅读下列材料:材料一:一位美国历史学家在谈到战前的欧洲形势时说:“欧洲变成一只‘火药桶’,只等一粒火星将它引爆。”材料二