1 . 如图,已知抛物线C:y2=2px(p>0),G为圆H:(x+2)2+y2=1上一动点,由G向C引切线,切点分别为E,F,当G点坐标为(-1,0)时,△GEF的面积为4.
(Ⅰ)求C的方程;
(Ⅱ)当点G在圆H:(x+2)2+y2=1上运动时,记k1,k2分别为切线GE,GF的斜率,求|
|的取值范围.
(Ⅰ)求C的方程;
(Ⅱ)当点G在圆H:(x+2)2+y2=1上运动时,记k1,k2分别为切线GE,GF的斜率,求|
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926c63f7c9191bc4c15ecc8804899601.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/bc134c04-3d92-4fc6-9547-e6dfa59997de.png?resizew=164)
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