6 2 4 (50 points) In what order are positions visited during a preorder traversal of the tree in Fig 1. Hint: Draw the tree on a separate sheet of paper and then mark nodes as they are visited, writing down the output produced for each visit. Your output should be a sequence like this:"-/.". 1. (50 points) In what order are positions visited during a preorder traversal of the tree in Fig 1. Hint: Draw the tree on a separate sheet of paper and then mark nodes as they are visited, writing down the output produced for each visit. Your output should be a sequence like this: - 1. (50 points) In what order are positions visited during a postorder traversal of the tree in Fig 1. Hint: Draw the tree on a separate sheet of paper and then mark nodes as they are visited, writing down the output produced for each visit. Your output should be a sequence like this: "3 1 + ". 2