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Chapter 7 · Data Structure and AlgorithmPractice
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CONCEPT PRACTICE

Operator-tree grouping rules

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2026 Spring · Subject A · Q1

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Which of the following is the prefix notation for the infix expression ((a−b)/(c+d))^e . Here, the symbols “+,” “−,” “/,” and “^” represent addition, subtraction, division, and exponentiation operators, respectively.

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Source: 2026S_FE-A_Questions.pdf, PDF page 4. ID: 2026S-A-Q001. Explanation written for this textbook.

Original question · Q1
Which of the following is the prefix notation for the infix expression ((a−b)/(c+d))^e . Here, the symbols “+,” “−,” “/,” and “^” represent addition, subtraction, division, and exponentiation operators, respectively.

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