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• 14:36, 21 January 2022 0kelvin talk contribs created page Examples of domain of a single variable function (Created page with "{| class="wikitable" |- | style="padding: 1em;"> | <math>f(x) = x^2</math> || style="padding: 1em;" | There is no restriction to which numbers we can calculate the square of. Any rational or irrational will do. i.e. The domain is all real numbers. |- | style="padding: 1em;"> | <math>f(x) = \sqrt{x}</math> || style="padding: 1em;" | We all learn at school that roots of negative numbers are complex numbers. Therefore, the domain is <math>\{x \in \mathbb{R} : x \geq 0\}</ma...")