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what is domain and range of a function mean ???????

please explain me using examples in simple terms.

thank you !!!!!!

Hi!
Here is the answer to your question.
 
The domain of the real function is the set of all those real number for which the function f(x) assume real values only.
The range of a function is the set of all real values taken by f(x) at point in its domain.
Examples:

Cheers!

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 Domain means the values which the function can take so that the function is defined.

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 Range means the answer you will get after putting the values of domain.

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 Eg: D omain of f(x)=x2 are all real nos.

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 Range of the same is all '+ve' real nos.

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