求分别满足下列条件的动圆圆心C的轨迹方程求分别满足下列条件的动圆圆心C的轨迹方程(1)动圆C与圆C1:(x+2)²+y²=1和园C2:(x-2)²+y²=4都相切(2)动圆C与圆C1:(x+2)²+y²=
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![求分别满足下列条件的动圆圆心C的轨迹方程求分别满足下列条件的动圆圆心C的轨迹方程(1)动圆C与圆C1:(x+2)²+y²=1和园C2:(x-2)²+y²=4都相切(2)动圆C与圆C1:(x+2)²+y²=](/uploads/image/z/9452995-43-5.jpg?t=%E6%B1%82%E5%88%86%E5%88%AB%E6%BB%A1%E8%B6%B3%E4%B8%8B%E5%88%97%E6%9D%A1%E4%BB%B6%E7%9A%84%E5%8A%A8%E5%9C%86%E5%9C%86%E5%BF%83C%E7%9A%84%E8%BD%A8%E8%BF%B9%E6%96%B9%E7%A8%8B%E6%B1%82%E5%88%86%E5%88%AB%E6%BB%A1%E8%B6%B3%E4%B8%8B%E5%88%97%E6%9D%A1%E4%BB%B6%E7%9A%84%E5%8A%A8%E5%9C%86%E5%9C%86%E5%BF%83C%E7%9A%84%E8%BD%A8%E8%BF%B9%E6%96%B9%E7%A8%8B%EF%BC%881%29%E5%8A%A8%E5%9C%86C%E4%B8%8E%E5%9C%86C1%EF%BC%9A%EF%BC%88x%2B2%29%26%23178%3B%2By%26%23178%3B%3D1%E5%92%8C%E5%9B%ADC2%3A%28x-2%EF%BC%89%26%23178%3B%2By%26%23178%3B%3D4%E9%83%BD%E7%9B%B8%E5%88%87%EF%BC%882%EF%BC%89%E5%8A%A8%E5%9C%86C%E4%B8%8E%E5%9C%86C1%EF%BC%9A%EF%BC%88x%2B2%29%26%23178%3B%2By%26%23178%3B%3D)
求分别满足下列条件的动圆圆心C的轨迹方程求分别满足下列条件的动圆圆心C的轨迹方程(1)动圆C与圆C1:(x+2)²+y²=1和园C2:(x-2)²+y²=4都相切(2)动圆C与圆C1:(x+2)²+y²=
求分别满足下列条件的动圆圆心C的轨迹方程
求分别满足下列条件的动圆圆心C的轨迹方程
(1)动圆C与圆C1:(x+2)²+y²=1和园C2:(x-2)²+y²=4都相切
(2)动圆C与圆C1:(x+2)²+y²=1和园C2:(x-2)²+y²=49都内切
(3)动圆C与圆(x+2)²+y²=1和直线x=1都相切
求分别满足下列条件的动圆圆心C的轨迹方程求分别满足下列条件的动圆圆心C的轨迹方程(1)动圆C与圆C1:(x+2)²+y²=1和园C2:(x-2)²+y²=4都相切(2)动圆C与圆C1:(x+2)²+y²=
1、设动圆圆心C(x,y) 动圆半径为r ∴CC1-CC2=1为常数 ∴圆心C的轨迹为双曲线的左支
故有2a=1 ∴a=1/2 又c=2 ∴b²=2²-(1/2)²=15/4 ∴圆心C的轨迹方程为x²/(1/2)²-y²/(15/4)²=1 (x