点P(x,y)在圆(x-4)²+(y-4)²=4上运动,则(y-1)/(x-1)的取值范围为__(9-2√14)/5≤k≤ (9+2√14)/5______.设 (y-1)/(x-1)=k则 y-1=k(x-1)即 kx-y+1-k=0这个是直线方程原问题转化为圆与直线有公共点圆的圆心是...