Identity function| Constant function| Linear function part 2 in Tamil

In mathematics, an identity function, also called an identity relation or identity map or identity transformation, is a function that always returns the same value that was used as its argument. That is, for f being identity, the equality f(x) = x holds for all x. In mathematics, a constant function is a function whose value is the same for every input value. For example, the function is a constant function because the value of is 4 regardless of the input value. previous video part 1 link: https://youtu.be/QPCxqxIQqi8