2010016103

Find the equations of all the tangent planes to the sphere \((x - 2)^2 + (y + 1)^2 + (z + 4)^2 = 36\) passing through the point \([-2; 3; t_3]\). The passing point belongs to the sphere and its third coordinate \(t_3\) is greater than \(z\) coordinate of the sphere center.