(a) Find the shortest distance from the circle C x^2+y^2-6x+2y-6=0 to the line .x+y=14(b) Find the equation of the line which passes through (0,3) and which is tangent to the circle C in (a).

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(a) Find the shortest distance from the circle C x^2+y^2-6x+2y-6=0 to the line .x+y=14(b) Find the equation of the line which passes through (0,3) and which is tangent to the circle C in (a).

(a) Find the shortest distance from the circle C x^2+y^2-6x+2y-6=0 to the line .x+y=14(b) Find the equation of the line which passes through (0,3) and which is tangent to the circle C in (a).
(a) Find the shortest distance from the circle C x^2+y^2-6x+2y-6=0 to the line .
x+y=14
(b) Find the equation of the line which passes through (0,3) and which is tangent to the circle C in (a).

(a) Find the shortest distance from the circle C x^2+y^2-6x+2y-6=0 to the line .x+y=14(b) Find the equation of the line which passes through (0,3) and which is tangent to the circle C in (a).
(a)找到圆C:x^2+y^2-6x+2y-6=0 到直线x+y=14的最短距离;
(b)找出穿过点(0,3)并与(a)中圆C相切的直线.
题目简单了,自己做吧