c1:x2+y2-2x-6y-6=0,与圆c2:x2+y2-4x+2y+4=0的公切线的条数.
c1:x2+y2-2x-6y-6=0,与圆c2:x2+y2-4x+2y+4=0的公切线的条数.
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.
圆C1:x2+y2+4x-4y+4=0与圆C2:x2+y2-4x-10y+13=0的公切线有( )
圆C1:x2+y2=1和圆C2:x2+y2-6x-8y+9=0的公切线有且仅有几条?
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+2x+2y-2=0,C2:x2+y2-4x-2y+1=0的公切线有且仅有 ______条.
圆C1:x2+y2-6x+6y-48=0与圆C2:x2+y2+4x−8y−44=0公切线的条数是( )
圆c1:x2+y2=1和圆C2:x2+y2-6x+8y-11=0的公切线方程为
两圆c1:x2+y2=1与c2:(x+3)2+y2=4的公切线有几条?
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+6y=0,圆C2:x2+y2+2x+8y=0,求两圆的圆心距.
C1:x2+y2+2x-6y-26=0 C2:x2+y2-4x+2y=0 两圆的位置关系