Md. Riday Khan

· 21 Nov 2021

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How to find domain of a function?

Therefore, every function is a relation, so the daemon and range of the function are its relations as its relation. From set A to set B.

If a function exists, then the domain of f = A, B is co-domain and all the elements of the set B are found as a reflection of all a € A.

but the range of f is in the elements. So, if f is a function and dom is f = A, co-domain of f is C & B and the range is f C & B,

then A is called a described function from A to B and f: A


Example:

In the case of this function, f (-2) = 4, f (-1) = 1, f (O) = 0, f (1) = 1, f (2) = 4

The Domain of this function are {-2, -1, 0 , 1, 2} and range = 0, 1, 4},


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