与圆C:(x-1)^2+(y-1)^2=1相切,且与x轴、y轴都相切的圆的个数有?答案4个哦

Question

与圆C:(x-1)^2+(y-1)^2=1相切,且与x轴、y轴都相切的圆的个数有?
答案4个哦

Answer 1

分别是:(x+1)^2+(y-1)^2=1,(x-1)^2+(y+1)^2=1,(x-（√2+1）/（√2-1）)^2+(y-（√2+1）/（√2-1）)^2=（3+2√2）/（3-2√2）,(x-（√2-1）/√2)^2+(y-（√2-1）/√2)^2=（3-2√2）/2 应该看得懂吧.有疑问找我哟!