Question: (20 points) (a) Draw the expression tree that represents the following infix expression: (6 x 5)/ (4 + (7 2)) 6. (b) In the linked

(20 points) (a) Draw the expression tree that represents the following infix expression: (6 x 5)/ (4 + (7 2)) 6. (b) In the linked representation of such a tree, how do we know that a node holds an operand? (b) Write a function post (t) that prints out the postfix version of the expression tree to whose root t points

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