(a) Draw an expression tree for the following algebraic expression (using for division):
y
2
+
(x y) x
3 (2 + 1)
(b) Read the binary tree on the right using the
(i) inorder traversal (with brackets);
(ii) preorder traversal (no brackets);
(iii) postorder traversal (no brackets).
+
1 2
4 5
3
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