1. The problem statement, all variables and given/known data Find a vector parallel to the line of intersection of the planes given by the equations 2x-3y+5z=2 and 4x+y-3z=7. 2. Relevant equations How do I go about this? I know we have two vectors <2,3,5> and <4,1,-3> but where do I go from here? 3. The attempt at a solution I don't know whether I dot this, cross product this. I'm lost as where to go from here.