1.

When representing any algebraic expression E which uses only binary operations in a 2-tree,

A. The variable in E will appear as external nodes and operations in internal nodes
B. The operations in E will appear as external nodes and variables in internal nodes
C. The variables and operations in E will appear only in internal nodes
D. The variables and operations in E will appear only in external nodes
Answer» B. The operations in E will appear as external nodes and variables in internal nodes


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