题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022530-89431.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022530-97823.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022531-37722.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022531-32750.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022531-22842.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022531-37560.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022532-97093.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022532-87900.png)
联立方程组
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022532-45241.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022532-15089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022532-95997.png)
所以PQ的中点坐标为(
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022532-82253.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022533-52380.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022533-52380.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022533-60297.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022532-82253.png)
令
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022533-26858.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022533-72272.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022533-72272.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022533-93770.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022533-18773.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022531-23271.png)
核心考点
试题【如图,分别是双曲线C:的左、右焦点,B是虚轴的端点,直线F1B与C的两条渐近线分别交于P,Q两点,线段PQ的垂直平分线与x轴交与点M,若|MF2|=|F1F2|】;主要考察你对双曲线的定义与方程等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022522-60359.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022522-97219.png)
A.x±2y=0 |
B.2x±y=0 |
C.x±![]() |
D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022517-58634.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022517-33392.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022518-20884.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022518-70230.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022513-20018.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022502-92730.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022502-10806.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022502-42544.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022502-70729.png)
(1)求k的取值范围,并求
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022502-95395.png)
(2)记直线
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022503-16252.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022503-59470.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022503-33225.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022503-82263.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022504-60840.png)
(1)求双曲线方程;
(2)设Q是双曲线上一点,且过点F,Q的直线l与y轴交于点M,若
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022454-46803.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024022454-19286.png)
最新试题
- 1法国作家雨果曾经这样说:“世界上最广阔的东西是海洋,比海洋更宽阔的是天空,比天空更宽阔的是人的胸怀。”这句话说明[
- 2甲、乙、丙是中学中常见的单质,X、Y、Z是常见的化合物.在常温常压下,甲是具有氧化性的黄绿色气体,丙是棕红色的液体,Y与
- 3日常生活中接触到的材料多为合成材料。下列物质中,不属于合成材料的是
- 4下列关于元素的叙述正确的是 [ ]A.金属元素与非金属元素能形成共价化合物B.只有在原子中,质子数才与核外电子数
- 5右图是a、b两种固体物质的溶解度曲线,下列说法中,正确的是A.20oC时,a物质的溶解度是5B.在20℃时,a、b的饱和
- 6 《水经》云:“彭蠡之口有石钟山焉。”郦元以为下临深潭,微风鼓浪,水石相搏,声如洪钟。是说也,人常疑之。今以钟磬置水中
- 7小新从A点出发前进10m,向右转36°,再前进10m,又向右转36°,…,这样一直走下去,他第一次回到出发点A时,一共走
- 8 请根据下面四个省份经济发展的数据统计表,在语段的横线处填上合适的内容,使语意完整,语句连贯。
- 9如图,点M(﹣3,4)到原点的距离是[ ]A.3B.4C.5D.7
- 10沿直线运动的物体前半程以3m/s的速度运动12s,后半程运动了8s,物体在后半程运动的平均速度和全程运动的平均速度分别是
热门考点
- 1下列叙述正确的是[ ]A.同周期元素的原子半径以VIIA族的为最大B.在周期表中零族元素的单质全部是气体C.IA
- 2已知三角形的两边长为4,8,则第三边的长度可以是 ▲ (写出一个即可).
- 3下列各组生物的性状中,不属于相对性状的是( )A.豌豆的高茎与矮茎B.家兔的短毛与黑毛C.人的双眼皮与单眼皮D.番茄的
- 4— Look! Here comes the bus and I have to go now. Thank you f
- 5____指商品、技术、劳务、资金在全球范围内进行跨国流动和配置,使各国经济日益相互依赖、相互联系的趋势 。
- 6“探险队员”--盐酸,不小心走进了化学迷宫,不知怎样走出来,因为迷宫有许多“吃人的野兽”(即能与盐酸反应的物质),盐酸必
- 7等腰△ABC中∠A=80°,若∠A是顶角,则∠B=______;若∠B是顶角,则∠B=______;若∠C是顶角,则∠B
- 8下列关于化学反应的自发性叙述中正确的是( )A.焓变小于0而熵变大于0的反应肯定是自发的B.焓变和熵变都小于0的反应肯
- 915-(7-5x)=2x+(5-3x)
- 10阅读下列材料: 材料一 伊藤博文说:“一国之权力,以君主大权为其枢轴,几百权利皆由来于此。”依此原则,1889