题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123232-99515.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123233-18480.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123233-85198.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123233-98660.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123234-40783.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123234-72123.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123234-74492.png)
(I)若
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123234-63015.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123235-12103.png)
(II)若点M到直线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123234-74492.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123235-86486.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123235-78415.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123235-78450.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123236-32216.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123236-78475.png)
由
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123236-12235.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123237-35596.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123237-50692.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123237-43414.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123237-62746.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123237-85022.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123238-14408.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123238-91305.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123238-22638.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123238-75916.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123238-81247.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123239-82570.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123239-17603.png)
(2)由抛物线的定义得
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123239-56199.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123239-64534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123240-90002.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123240-49733.png)
化简得
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123240-64050.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123240-98483.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123241-34932.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123241-62710.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123241-39266.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123241-97055.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123242-37203.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123242-92281.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123242-99159.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123242-23689.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123242-70697.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123242-77610.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123235-78415.png)
核心考点
试题【过抛物线的焦点F作斜率分别为的两条不同的直线,且,相交于点A,B,相交于点C,D。以AB,CD为直径的圆M,圆N(M,N为圆心)的公共弦所在的直线记为。(I)若】;主要考察你对抛物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/20191025/20191025123118-53752.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123118-78787.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123118-30994.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123118-43138.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123119-10659.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123119-80280.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123118-30994.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123119-23956.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123121-43414.jpg)
(1)用
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123121-64643.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123122-38188.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123119-80280.gif)
(2)当实数
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123122-38188.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123122-31577.gif)
并求此时
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123122-68301.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123058-15951.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123058-95159.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123059-38924.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123059-72674.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123059-84434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123059-79928.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123059-84434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123058-15951.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123059-31084.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123059-47043.png)
(1) 求抛物线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123058-15951.png)
(2) 当点
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123100-52157.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123059-79928.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123100-56633.png)
(3) 当点
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123059-84434.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123059-79928.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025123100-71482.png)
A.4 | B.6 | C.8 | D.12 |
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122922-56200.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122922-38182.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122923-44995.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122923-96855.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122923-33009.jpg)
(A)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122924-55239.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122924-13638.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122924-61386.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122924-28525.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122918-41380.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122919-39525.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122919-30626.gif)
(1)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122919-36149.gif)
(2)当
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122919-35440.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122919-43573.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025122920-85009.gif)
最新试题
- 1有一位商人,从北京向上海的家中打电话,通话m分钟的电话费,由函数f(m)=1.06×(0.5[m]+1)(元)决定,其中
- 2抛物线y=x2-2x+4的顶点坐标是______.
- 3如图示叶片在阳光下进行的生理活动,A、B、C均表示物质,请据图回答问题:(1)若此过程表示叶片的光合作用,则进行此过程的
- 4下列说法正确的是 ( )A.电解质溶液在通电时才可以电离B.金属氧化物一定都是碱性氧化物C.非金属氧化物都是酸性氧化物
- 5如图,抛物线,OA=OC,下列关系中正确的是A.ac+1=bB.ab+1=cC.bc+1="a" D.
- 6一物体从某行星上的一悬崖上从静止开始下落,1s后,从起点落下4m.该行星上的重力加速度为______m/s2.若该物体再
- 7甲午中日战争中,使清军北洋舰队全军覆灭的战役是 [ ]A、威海卫战役 B、黄海海战 C、旅顺战役D、丰岛海战
- 8阅读下面的诗歌,完成题目(8分)江楼夕望招客白居易海天东望夕茫茫,山势川形阔复长。灯火万家城四畔,星河一道水中央。风吹古
- 9氧氮杂卓是新药研制过程中发现的一类重要活性物质,具有抗惊厥、抗肿瘤、改善脑缺血等性质。下面是某研究小组提出的一种氧氮杂卓
- 10若一边长为40cm的等边三角形硬纸板刚好能不受损地从用铁丝围成的圆形铁圈中穿过,则铁圈直径的最小值为______cm.(
热门考点
- 1在代数式x2+ax+b中,当x=2时,它的值为3;当x=-2时,它的值为19,则a=( ),b=( )。
- 2红色旅游是当今旅游的热点。潍坊市某校夏令营计划暑期组织一次红色旅游。他们选择了上海。你认为他们主要是为了了解[
- 3阅读下面的文言文,完成小题。(19分)灵壁张氏园亭记 苏 轼道京师而东,水浮浊流,陆走黄尘,陂田苍莽,行者倦厌。
- 4读“美国部分地区轮廓图”,回答题小题1:图中a、b、c、d、e五区域中,不属于商品谷物农业地域类型的是( )A.a
- 5下列各组混合物中,能用分液漏斗进行分离的是( )A.水和酒精B.水和植物油C.水和醋酸D.水和蔗糖
- 6在结束了初中阶段数学内容的教学后,唐老师计划安排60课时用于总复习,根据数学内容所占课时比例,绘制如下统计图表(图1~图
- 7实施“十二五”规划要以加快转变经济发展方式为主线。下列符合这一要求的举措是[ ]①增强企业的自主创新能力 ②调整
- 8阅读下列材料:(13分)材料一 经济外交史关系到国家经济发展,关系到国家政治、经济和安全利益,关系到国际经济协调、世界和
- 9设等比数列{an}的前n项和为Sn,已知an + 1 = 2Sn + 2 (n∈N*).(1)求数列{an}的通项公式;
- 10已知:x=2abb2+1(a>0,b>0),化简:a+x-a-xa+x+a-x