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If f(x) = x³ - (1/x³), then f(x) + f(1/x) is equal to ____?

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If f(x) = x³ - (1/x³), then f(x) + f(1/x) is equal to ____? Answer: 0

Algebraic manipulation and understanding of function composition. Here, adding a function and its reciprocal form cancels terms, giving zero.

Question context

This question is part of 📏 Arithmetic Aptitude within the broader 🧠 Aptitude Mastery subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.