Severity: Warning

Message: count(): Parameter must be an array or an object that implements Countable

Filename: controllers/calculator.php

Line Number: 37

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Given function, f(x) = 1/(x – 2)

Here we have an expression in the denominator.

We know that if there is ‘0’ in the denominator, then the value is undefined.

1/0 = undefined

Hence the domain of the function is any Real number, R except ‘2’.

Given function, f(x) = 1/(x – 2)

Considering the domain of the function as all real numbers except ‘2’, now let’s look at the statement è 1/(x-2) = 0

Hence the Range of this function is all Real numbers, R except ‘0’.