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A radicand is the number or expression inside a radical symbol. It is the value that you want to find the root of.
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Radical: A symbol that indicates the root of a number or expression; commonly written as $\sqrt{}$ for square roots.
Rational Exponent: An exponent that is a fraction, where $a^{1/n}$ represents the n-th root of $a$.
Square Root: \(\sqrt{x}\) represents a value that, when multiplied by itself, gives x. The principal square root always returns non-negative values.