1. Give the expression tree for ((at (b-c))*(d-e))+(f*(h-i)) 2. For the tree shown in this figure, answer the following questions. a) Height of the tree = ? b) Depth of node J = ? c) Height of node J = ? d) Redraw the tree by the First-child, Next- Sibling method e) Give the post-order, pre-order and in-ordero traversals of the tree. L M