圆C1:(x-1)²+(y+5)²=50.圆C2:(x+1)²+(y+1)²=10.
∴圆心C1(1,-5),C2(-1,-1),r1=5√2,r2=√10.===>|C1C2|=√(4+16)=2√5.易知,r1-r2＜|C1C2|＜r1+r2
.∴两个圆相交