The function f: ℝ → ℝ defined by f(x) = 1/x assigns each real number x (except 0) its reciprocal. The domain of f(x) is ℝ \ {0} and the range is also ℝ \ {0}. Class 12 Maths Relations and ...
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A function in mathematics is a rule that assigns each input exactly one output. It is denoted as f: A → B, where A is the domain and B is the codomain. Functions describe relationships between variables like y = ...
A reflexive relation on a set A is a relation R where every element is related to itself. Mathematically, R is reflexive if (a, a) ∈ R for all a ∈ A. Example: On A = {1, 2}, R = ...