判定圆x2+y2-6x-4y+12=0与圆x2+y2-6x-2y-40=0是否相切拜托各位了 3Q
判定圆x2+y2-6x+4y+12=0与圆x2+y2-14x-2y+14=0是否相切.
求圆x2+y2+2x-6y+1=0与圆x2+y2+2y-..
已知两圆x2+y2-10x-10y=0,x2+y2+6x-2y-40=0,
直线3x+4y+c=0与圆x2+y2-6x-2y=0相切,则c=
已知x2+y2+4x-6y+13=0 求x2-2x\x2+3y2
圆A:x2+y2+4x+2y+1=0与圆B:x2+y2-2x-6y+1=0的位置关系是( )
c1:x2+y2-2x-6y-6=0,与圆c2:x2+y2-4x+2y+4=0的公切线的条数.
与直线l:y=2x+3平行且与圆x2+y2-2x-4y+4=0相切的直线方程是______.
实数k为何值时,两圆C1:X2+Y2+4X-6Y+12=0,C2:X2+Y2-2X-14Y+K=0
两圆x2+y2+2x+4y+3=0,x2+y2-2x+2y-6=0的位置关系是( )
X2+Y2+8X+6Y+25=0 求代数式(x2-4y2/x2+4xy+4y2)-x/x+2y
已知X2+Y2+8X+6Y+25=0 求代数式X2++XY+4Y2分之X2-4Y2 减X+2Y分之X的值