过点(-3,4)且与圆(x-1)²+(y-1)²=25相切的直线方程为多少
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![过点(-3,4)且与圆(x-1)²+(y-1)²=25相切的直线方程为多少](/uploads/image/z/7868594-2-4.jpg?t=%E8%BF%87%E7%82%B9%28-3%2C4%29%E4%B8%94%E4%B8%8E%E5%9C%86%28x-1%29%26%23178%3B%2B%28y-1%29%26%23178%3B%3D25%E7%9B%B8%E5%88%87%E7%9A%84%E7%9B%B4%E7%BA%BF%E6%96%B9%E7%A8%8B%E4%B8%BA%E5%A4%9A%E5%B0%91)
过点(-3,4)且与圆(x-1)²+(y-1)²=25相切的直线方程为多少
过点(-3,4)且与圆(x-1)²+(y-1)²=25相切的直线方程为多少
过点(-3,4)且与圆(x-1)²+(y-1)²=25相切的直线方程为多少
P(-3,4)
C:(x-1)^2+(y-1)^2=25,C(1,1)
(-3-1)^2+(4-1)^2=25
k(CP)=-3/4
y-4=[-1/k(CP)]*(x+3)
4x-3y+24=0