以抛物线y^2=4x的焦点为圆心且与抛物线相切的圆的方程是
以抛物线y^2=4x的焦点为圆心且与抛物线相切的圆的方程是
数学人气:325 ℃时间:2019-11-09 05:21:56
优质解答
焦点坐标为(1,0),所以圆心坐标为(1,0).抛物线的准线为X=-1,圆的半径为2圆的方程为(X-1)^2+Y^2=4
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