Question: Given the above class Node, write a recursive method to find the value of a formula tree e . g . 1 8 in the

Given the above class Node, write a recursive method to find the value of a formula tree e.g.18 in the above tree. Assume
that there are only four operators +(plus),-(minus),*(multiplication), and /(division) allowed in the formula.Binary trees can be used to represent mathematical formulas. For example, a mathematical formula ) can be
stored as a binary tree and then we can calculate the value of the formula recursively like the following:
Given the above class Node, write a recursive method to find

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