两圆C1:x2+y2+2x+2y-2=0,C2:x2+y2-4x-2y+1=0的公切线有且仅有 ______条.
两圆C1:x2+y2+2x+2y-2=0,C2:x2+y2-4x-2y+1=0的公切线有且仅有 ______条.
圆C1:x2+y2=1和圆C2:x2+y2-6x-8y+9=0的公切线有且仅有几条?
圆x2+y2-2x=0和圆x2+y2+4y=0的公切线有且仅有
c1:x2+y2-2x-6y-6=0,与圆c2:x2+y2-4x+2y+4=0的公切线的条数.
两圆x2+y2-4x+2y+1=0与x2+y2+4x-4y-1=0的公切线有______条.
已知圆C1:x2+y2-4x=0,圆C2:x2+y2+6x+10y+16=0,则两圆的公切线有______条.
求圆C1:X2+y2-2y=0与圆C2:x2+y2-2√3x-1=0的公切线方程
两圆c1:x2+y2=1与c2:(x+3)2+y2=4的公切线有几条?
圆C1:x2+y2+4x-4y+4=0与圆C2:x2+y2-4x-10y+13=0的公切线有( )
已知两圆C1:x2+y2=4,C2:x2+y2-2x-4y+4=0 直线l:x+2y=0求经过圆C1和C2的交点且和直线
C1:x2+y2+2x-6y-26=0 C2:x2+y2-4x+2y=0 两圆的位置关系
实数k为何值时,两圆C1:X2+Y2+4X-6Y+12=0,C2:X2+Y2-2X-14Y+K=0