Draw arithmetic expression tree that has four external nodes

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Reference no: EM131834786

Problem

Draw an arithmetic expression tree that has four external nodes, storing the numbers 1, 5, 6, and 7 (with each number stored in a distinct external node, but not necessarily in this order), and has three internal nodes, each storing an operator from the set { + , - , ×, /}, so that the value of the root is 21. The operators may return and act on fractions, and an operator may be used more than once.

Reference no: EM131834786

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