Q.

When representing any algebraic expression E the following 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 exter- nal nodes and variables in internal nodes
C. the variables and operations in E will appear only in internal nodes
D. None of the above
Answer» A. the variable in E will appear as external nodes and operations in internal nodes
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