how to find domain and range
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Rashmi Bajpayee 8 years, 10 months ago
Domain: If f : X Y is a function, then the set X is called the Domain and Y is called the co-domain of the function f.
Example: Find domain of the function
The given function is not defined at x = 5.
Therefore, Domain of the given function is R - {5}, where R is set of all real numbers.
Range: The set of second elements of the ordered pairs defining a function is called the Range of the function.
Example: Find the range of function
Now,
Clearly, x is not defined when y = 0.
Therefore, Range of given funciton is R - {0}.
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