A unary operation acts on a single input (operand), like the negation in -x, while a binary operation acts on two inputs, such as addition (+). A unary relation on a set S is simply a subset of S, representing a property of one element, while a binary relation on S is a subset of S × S, representing a relationship between pairs of elements.
The negation of a given number is?
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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.