Finding The Domain Of Radical Functions 2 Video Tutorial
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Domain of a Function
The domain of a given function is the set of "input" values for which the function is defined. For instance, the domain of cosine would be all real numbers, while the domain of the square root would only be numbers greater than or equal to 0 (ignoring complex numbers in both cases). In a representation of a function in a xy Cartesian coordinate system, the domain is represented on the x axis.
Radicals
The radical symbol is used to indicate the nth root of a number.
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