圆(x-1)^2+(y-1)^2=1上一点m(x,y),求m到直线x+y-3=0的最大距离

问题描述:

圆(x-1)^2+(y-1)^2=1上一点m(x,y),求m到直线x+y-3=0的最大距离

圆心(1,1)到直线的距离D=|1+1-3|/√2=√2/2 m到直线x+y-3=0的最大距离=1+√2/2