IDENTITY FUNCTION
IDENTITY FUNCTION
IDENTITY FUNCTION
IDENTITY FUNCTION
IDENTITY FUNCTION
IDENTITY FUNCTION

IDENTITY FUNCTION

CONTENT

INTRODUCTION     |   FUNCTION OF A REAL VARIABLE   |   TYPES OF FUNCTIONS      IDENTITY FUNCTIONS   |   BASIC FUNCTIONS   |   LIMIT OF FUNCTIONS OF REAL VARIABLES

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. In equations, the function is given by f(x) = x.

If x and y are the came set and if for each x = X ; F(x) = X, we say that f is an identity function of x.

The domain of function of real variable may be describe implicitly by an equation used to define a function.

Generally, it can be represented diagrammatically as;

And the Graph as;


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