题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020125-24881.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020125-86508.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020125-21391.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
试题分析:不妨设双曲线的标准方程为
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020126-85403.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020126-26708.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020125-21391.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020126-24931.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020126-95356.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020126-45252.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020127-71389.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020127-46403.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020127-63611.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020127-72540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020128-37461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020128-72114.png)
点评:求解圆锥曲线的题目,一定要画图象辅助答题,另外这类题目一般运算量比较大,要仔细计算,准确解答.
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020118-48545.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020118-78484.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020118-14155.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020119-48379.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020106-41722.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020106-20242.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020106-44612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020107-46341.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020107-61468.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020107-98552.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020107-46341.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020107-70510.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020107-46341.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020108-68667.png)
(1)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020107-61468.png)
(2)椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020107-61468.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020108-54332.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020107-46341.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020106-44612.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020108-36425.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020108-54332.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020100-81647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020100-72133.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020101-57426.png)
A.![]() ![]() | B.![]() ![]() |
C.y![]() ![]() | D.![]() ![]() ![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020054-83278.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020054-52941.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020054-44598.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020054-13070.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020048-95198.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020049-82551.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020049-20490.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020049-71491.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020049-82551.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020049-36276.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020049-79086.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026020050-64824.png)
A.![]() | B.1 | C.![]() | D.2 |
最新试题
- 1已知抛物线关于x轴对称,它的顶点在坐标原点O,并且经过点M(2,y0),若点M到该抛物线焦点的距离为3,则|OM|=[
- 2(6分)一定温度下,在2L密闭容器中充入N2和H2合成NH3,其起始浓度分别为:c(N2)=2mol/L,c (H2 )
- 3下列哪个部位疼痛可能是阑尾炎 [ ]A.胸膛左下部 B.腹腔右下部 C.腹腔左下部 D.胸腔右下部
- 4香蕉比桔子贵25%,若香蕉的价格是每千克m元,则桔子的价格为每千克( )元.
- 5用98%的浓硫酸(密度为1.84g/cm3)配制1 mol/L的稀H2SO4 100mL。配制过程中可能用到下列仪器:①
- 6写出下列各句运用的修辞方法。A.一条快活的小溪流哼哼唱唱,不分日夜地向前奔流。( ) B.黑的山峰像巨人一样矗立在
- 7如图是一些立体图形的视图,但是观察的方向不同,试说明下列各图可能是哪一种立体图形的视图.
- 8李兵同学编写的化学小报中有如下标题,其中某标题下文章中的主角是一氧化碳,该标题可能是( )A.PM2.5与雾霾天气B.新
- 9赣州种植的主要作物是[ ]A.大豆、小麦 B.芝麻、甜菜 C.油菜、水稻 D.花
- 10规范工整地抄写下面一幅对联。(3分)少年辛苦终身事,莫向光阴惰寸功。 ——(唐)杜荀鹤
热门考点
- 1如果一辆汽车的速度为40千米/时,那么汽车不停地开,需多长时间可绕地球赤道一圈?(地球赤道一周大约4×104千米)
- 2 My name is Wang Kun. Ever since middle school, my sister an
- 3下列行为属于违反未成年人保护法的是 [ ]A、由于家庭贫困,某家长强迫上七年级的孩子终止学业,外出打工 B、某中
- 4人们将一种叫“水葫芦”的植物引种到某池塘后,这种植物很快在池塘中蔓延,甚至威胁到其它生物的生存。这说明了 [
- 5已知圆锥的底面圆的半径是8cm,母线长是10cm,则圆锥的侧面积是______cm2.
- 6毛细血管的下列特点中,除哪项外,均与其物质交换功能相适应[ ]A.通常位于最小动脉和最小静脉之间 B.分布广
- 7被子植物是最高等的一类植物,与人类关系密切,下列相关说法中错误的是[ ]A.种子的萌发环境条件是适宜的温度、一定
- 8双子叶植物中,营养物质贮存在[ ]A.胚芽B.子叶C.胚乳D.胚轴
- 9小红同学发现他家菜园中的蔬菜生长不旺,是缺乏氮肥所致.他施用一种叫做硝酸铵(NH4NO3)的氮肥后情况大为改观.若他向菜
- 10如图,直线a∥b,点B在直线b上,且AB⊥BC,∠1=40°,则 度.