whose vector equations are   find the shortest distance between the lines l1 and l2   find the shortest distance between the lines l1 and l2 whose vector equations are   find the distance between the lines l1 and l2 given by   find the shortest distance between the lines l1 and l2 given below   find the shortest distance between the lines l1 and l2 given by   find the shortest distance between the lines l1 and l2   find the distance between the lines l1 and l2 given by   find the shortest distance between the lines l1 and l2 whose vector equations are