Determine two perpendicular unit vectors to a = [3, 5, -4] and b = [-3, 1, -5],
a×b ⊥ a and b
c = {3, 5, -4}×{-3, 1, -5} = {-21,27,18}
and of course, -c is also ⊥ to a and b
c = {3, 5, -4}×{-3, 1, -5} = {-21,27,18}
and of course, -c is also ⊥ to a and b