Function
Function is a relation between two variables of an equation. For a specific value of x the certain value of y is found.
The set of value of input variables is called domain and a set of resut for domain is called Range.
Domain
Domain is the input of a function. Any variable of an equation that results a real number is termed as domain. These real value of any domain is not possible if it result an wood value of range. Hence, what value of input can defined is determined by the value of range.
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