两圆x*x+y*y+2kx+k*k-1=0与x*x+y*y+2(k+1)y+k*k+2k=0的圆心之间最短距离是多少?
问题描述:
两圆x*x+y*y+2kx+k*k-1=0与x*x+y*y+2(k+1)y+k*k+2k=0的圆心之间最短距离是多少?
答
两圆x*x+y*y+2kx+k*k-1=0与x*x+y*y+2(k+1)y+k*k+2k=0的圆心之间最短距离是多少?