1. A line has direction angles 60, 45, 60 and passes through the point (-2,1,3). Determine the symmetric equations of the line.

For this one I know that the angles given are the direction angles, but Im not sure what to do with them, any help would be much appreciated.

2. Find the equation of a plane, every point of which is equidistant from the points A(1,1,0) and B(5,3,-2).

I've thought about this one, and I just can't wrap my head around it, would I just use a variable or something to represent the equidistance? A bit of guidance would be awesome.

Thanks so much for your time and any help you can give me