解题方法
1 . 已知直线
:
与圆
:
交于不同的两点
、
,
,数列
满足:
,
,则数列
的通项公式为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7c5e7bd6bac51402ffa04b4144ec78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c17b03d85cdffb23688f4ef31355d7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc31dcdb99754fc452ff2b92a2fb8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fce11993bf27de62ddad100797128b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5c583c98a1fd516c6ceaa60b55dec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2aa78c96db411c9e1e939ae16de78d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96de7c9a23590b55db194374735bebf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
您最近一年使用:0次
名校
解题方法
2 . 已知抛物线
的顶点是椭圆
的中心,焦点与该椭圆的右焦点重合.
(1)求抛物线
的方程;
(2)已知动直线
过点
,交抛物线D于A、B两点,是否存在垂直于
轴的直线
被以
为直径的圆所截得的弦长恒为定值?如果存在,求出
的方程;如果不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)已知动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af74113f38fffeed8075e57d7f9d2533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-06-03更新
|
516次组卷
|
4卷引用:四川省自贡市田家炳中学2022-2023学年高二下学期期中数学试题
四川省自贡市田家炳中学2022-2023学年高二下学期期中数学试题江苏省盐城中学2021届高三下学期仿真模拟数学试题(已下线)3.3.2 抛物线的简单几何性质-2021-2022学年高二数学同步速效提升练(人教A版2019选择性必修第一册)【学科网名师堂】江西省宜春市上高二中2022届高三5月第十次月考数学(文)试题
名校
解题方法
3 . 如图,已知圆
的圆心为C,此圆和直线
在
轴上方有两个不同交点A、B,
![](https://img.xkw.com/dksih/QBM/2017/10/11/1792984907071488/1794367512649728/STEM/29dbd52f-f11a-4c56-abdf-6db1db40ebd7.png?resizew=163)
(1)求
的取值范围;
(2)求
面积的最大值及此时a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bcf46f1bb0d01620c1cbe79beece42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d6726ad80abb039289e371483ef53b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/2017/10/11/1792984907071488/1794367512649728/STEM/29dbd52f-f11a-4c56-abdf-6db1db40ebd7.png?resizew=163)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2017-10-13更新
|
778次组卷
|
3卷引用:四川省自贡市田家柄中学教育集团2021-2022学年高二上学期期中考试数学试题