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1 . 下列结论:①若方程
表示椭圆,则实数k的取值范围是
;②双曲线
与椭圆
的焦点相同.③M是双曲线
上一点,点
,
分别是双曲线左右焦点,若
,则
或1.④直线
与椭圆C:
交于P,Q两点,A是椭圆上任一点(与P,Q不重合),已知直线AP与直线AQ的斜率之积为
,则椭圆C的离心率为
.错误的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b358b8107f5f60173c55ebd0e396a25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b8ee323167ad42262174be8185d073.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b4def4ef4cc28a3c5b792a209b82ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89d020c650b5a0e75be52bf26cd33c3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a44342c2ee26a279265225982499b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e27ad0481b4eba360acafcc03919d4a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dcae3a25d624a523417259f73b2c21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f30d314a642667fef559032264647366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
A.4个 | B.3个 | C.2个 | D.1个 |
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2023-05-20更新
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4卷引用:内蒙古赤峰市桥北四中2023届高三下学期模拟考试理科数学试题
内蒙古赤峰市桥北四中2023届高三下学期模拟考试理科数学试题(已下线)第05讲 椭圆及其性质(八大题型)(讲义)-4(已下线)第03讲 3.2.1双曲线及其标准方程(3)河北省沧州市泊头市第一中学2023-2024学年高二上学期10月月考数学试题