选择题:已知椭圆M:x2/a2+y2/b2=1(a>b>0)双曲线N:x2/m2-y2/n2=1,若双曲线N的两条斩近线与椭圆M的四个交点及椭圆M的两个焦点恰为--个正 题目分类:高考 题目类型:选择题 查看权限:VIP 题目内容: 已知椭圆M:x2/a2+y2/b2=1(a>b>0)双曲线N:x2/m2-y2/n2=1,若双曲线N的两条斩近线与椭圆M的四个交点及椭圆M的两个焦点恰为--个正六边形的顶点则椭圆M的焦距与长轴长的比值为____ 参考答案: 答案解析:
设集合U={2,3,2a+1},集合A={3,a},若C∪A={2},则实数a=____ 设集合U={2,3,2a+1},集合A={3,a},若C∪A={2},则实数a=____ 分类:高考 题型:选择题 查看答案
- Shall we play it one more time ? --Im afraid not. I be off for my papers. - Shall we play it one more time ? --Im afraid not. I be off for my papers. 分类:高考 题型:选择题 查看答案
-Wow!_clean air we have today! -Yes. Look! A lot of adults are doing Kung fu ov -Wow!_clean air we have today! -Yes. Look! A lot of adults are doing Kung fu over there. 分类:高考 题型:选择题 查看答案
Lee is new in NanchangMaybe he needs a for sightseeing Lee is new in NanchangMaybe he needs a for sightseeing 分类:高考 题型:选择题 查看答案