名校
解题方法
1 . 已知双曲线
的离心率为
,双曲线
的左、右焦点分别为
,点
在双曲线
的右支上,且
.
(1)求双曲线
的标准方程;
(2)过点
的直线
交双曲线
于
两点,且以
为直径的圆过原点
,求弦长
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450f820d4598d103c374bee7d2690579.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb203d8908ffd00fc19e6d8b5f3eae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
您最近一年使用:0次
2022-11-16更新
|
994次组卷
|
6卷引用:江西省吉安市2022-2023学年高二上学期11月期中考试数学试题
名校
解题方法
2 . 已知点
为抛物线
的焦点,点
是准线
上的动点,直线
交抛物线
于
两点,若点
的纵坐标为
,点
为准线
与
轴的交点.
![](https://img.xkw.com/dksih/QBM/2015/7/21/1572189101285376/1572189107068928/STEM/533ec52e-f87c-48dc-884b-7fbd752277ff.png?resizew=129)
(Ⅰ)求直线
的方程;
(Ⅱ)求
的面积
的范围;
(Ⅲ)设
,求证
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f41b8856f1acaf13e6968f0a96f37795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/2015/7/21/1572189101285376/1572189107068928/STEM/533ec52e-f87c-48dc-884b-7fbd752277ff.png?resizew=129)
(Ⅰ)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
(Ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4c625a55ef1d2920a0605d52c8da23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(Ⅲ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef95f2c6850d7c64407d3acc92dcbdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
您最近一年使用:0次
2016-12-03更新
|
1248次组卷
|
2卷引用:2014-2015学年江西吉安一中高二下学期期中理科数学试卷
3 . 已知椭圆![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003124371456/1572003130146816/STEM/4539fb5a194943e3b0e7a3ac0f13e13b.png)
与直线
:
交于
两点,
为坐标原点.
(Ⅰ)若直线
过椭圆的左焦点,且
,求
的面积;
(Ⅱ)若
,且直线
与圆![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003124371456/1572003130146816/STEM/574521c943d640509d0c85c072213422.png)
相切,求圆
的半径
的值.
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003124371456/1572003130146816/STEM/4539fb5a194943e3b0e7a3ac0f13e13b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c763113a1fc48e8acc83787b8cd24eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b256345d7109e081b7c895591e995d.png)
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003124371456/1572003130146816/STEM/8f60db50f66e4f988b0c88ea674b51b8.png)
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003124371456/1572003130146816/STEM/209e73ddb3f442e29664521e1a4729aa.png)
(Ⅰ)若直线
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003124371456/1572003130146816/STEM/e627801811ea4d269b1ffbebe37f52f5.png)
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003124371456/1572003130146816/STEM/5eeecbf4b9f442edb3d3e9603c8c602b.png)
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003124371456/1572003130146816/STEM/92ea9f35e7ef49719de6d37e4d7a8b5c.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada5c15d7b42b2fb2836c3478ae5fb34.png)
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003124371456/1572003130146816/STEM/e627801811ea4d269b1ffbebe37f52f5.png)
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003124371456/1572003130146816/STEM/574521c943d640509d0c85c072213422.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3503d330608e7138d1b529aba4512fa.png)
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003124371456/1572003130146816/STEM/206d1d8cae5541bf9d6be4397383e297.png)
![](https://img.xkw.com/dksih/QBM/2015/3/12/1572003124371456/1572003130146816/STEM/959dd18dab404d87873ce386791b98ed.png)
您最近一年使用:0次