解题方法
1 . 若直线经过点
和圆C:
的圆心,并且与直线
平行,则m的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c9aad6b47669251c38fbdad44f6d4b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754b2d0f98fbcd1f7be049cd6232391b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16b5431b5b61203a21457bd87b10b1c1.png)
A.![]() | B.4 | C.![]() | D.1 |
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2 . 设点
,
,直线
过点
且与线段AB相交,则直线
的斜率k的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf623461729fdeada7245a34774199e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292dd14f24b8392e499c328c1ca82f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797c488729678e74e0825c2e92b544b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
A.![]() ![]() | B.![]() |
C.![]() | D.以上都不对 |
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3 . 已知双曲线
的左、右顶点分别为
,点
是双曲线
上与
不重合的动点,若
, 则双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e121b3879dafa6c540c0cf1bdd9f679e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663368000ac90f582d12675aa2d1e832.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/663368000ac90f582d12675aa2d1e832.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7679e3d082760d0b67650e2c25a9b0de.png)
A.![]() | B.![]() | C.4 | D.2 |
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2019-04-22更新
|
755次组卷
|
4卷引用:【省级联考】内蒙古2019届高三高考一模数学(文科)试题