两圆x^2+y^2-6y=0与x^2+y^2-8y+12=0的位置关系是?
人气:418 ℃ 时间:2020-05-17 16:14:13
解答
x^2+y^2-6y=0
化简 x^2+(y-3)^2=9
圆心(0,3)半径 3
x^2+y^2-8y+12=0
化简 x^2+(y-4)^2=4
圆心(0,4)半径 2
所以是内切关系
推荐
猜你喜欢
- "Do you like swimming?"the teacher asked Mike(改间接引语)
- He _______ to bed at nine.doesn't often go/often doesn't go/not often go/go often
- 有甲乙两只水桶,把乙桶里的半桶水倒入乙桶,刚好装满了乙桶的三分之二,在把乙桶的水倒出六分之一后,还剩15千克.甲桶可装水多少千克?
- 改错 having not seen the film,I can't tell you what I think of it.
- 英语翻译
- 物理题小明家离学校1200m,其中有一段为上坡路,她去学校共用了16分,假设小明上坡路的平均速度
- 南水北调工程对我省有哪些积极影响
- 1、甲、乙、丙三人的存款的平均数是4500元,已知甲和乙的存款数之比是4比3,丙存款比甲多300元,三人存款各是多少?