Is the point (-4,-5,3) visible from the point (4,5,0) if there is an opaque ball of radius 1 centered at the origin? Suppose that you stand at the point (4,5,0) and look in the direction of a point that is not visible because it is behind the ball. You will then be looking at a point on the sphere. If (-4,-5,3) is not visible from (4,5,0), find the point on the sphere at which you are looking if you look in the direction of (-4,-5,3). Otherwise, find the point on the sphere at which you look if you are looking in the direction of (-4,-5,2). Point (x,y,z)=