06-12-2021
Mathematics

contestada

Provide an example of a function that does not have an inverse function. How do you prove that it is not a function?

Respuesta :

06-12-2021

Answer:

f(x) = x^2 is a classic example

f( 3 ) = 9 and

f( -3 ) = 9, but

f^(-1)[9] is undefined because the result can be 3 and -3

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