已知焦点在x轴上且长轴长为4的椭圆C过点T(1,1),记l为圆O:x2+y2=1的切线
(1)求椭圆C的方程;
(2)若l与椭圆C交于A、B两点,求证:∠AOB为定值.
(1)求椭圆C的方程;
(2)若l与椭圆C交于A、B两点,求证:∠AOB为定值.
更新时间:2019-04-26 22:52:28
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【推荐1】已知椭圆
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为坐标原点,
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(1)求椭圆
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(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/831fe9fb4e9d2d3a5d27d58afa684089.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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【推荐2】设椭圆
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与直线
的斜率分别为
,
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(1)求椭圆
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(2)随着直线
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(1)求椭圆
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【推荐1】已知椭圆C:
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(1)求椭圆C的方程;
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(1)求椭圆C的方程;
(2)经过定点
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