Find Domain of a Function Calculator

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Domain of a function is all the input values that can be assigned to the function's variable which defines the value of the function. So domain for a function f (x) is all the possible input values of ‘x’. The online tool used to find the domain of a given function is called as domain of a function calculator.


Example 1: Find the domain of the function 4 x/ [(x- 2) (x- 3).

Given is a function f(x) = 4 x/ [(x- 2) (x- 3)]

The domain of the function is all the possible input values of ‘x’.

Here if we equate the dominator [(x- 2) (x- 3)] = 0

This gives the possible x = 2 and x = 3

When x = 2, 3 the function is undefined as denominator = 0 and hence those values are not included.

Therefore the domain of the function is:  R - {2,3}


 
Example 2: Find the domain of the function 5 x/ [(x- 1) (x- 5)?

Given is a function f(x) = 5 x/ [(x- 1) (x- 5)]

The domain of the function is all the possible input values of ‘x’.

Here if we equate the dominator [(x- 1) (x- 5)] = 0

This gives the possible x = 1 and x = 5;

When x = 1, 5 the function is undefined as denominator = 0 and hence those values are not included.

Therefore the domain of the function is:  R - {1, 5}

 

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