Hi MHF, knowing that the quadratic function does not admit inverse, and that $\displaystyle \left | X\right | = \sqrt[2]{x^{^2}}$ a modular function have inverse? if yes, how can i find for example y= |x+2|-|3x+2|.

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- Oct 4th 2012, 05:47 PMChipset3600Inverse function
Hi MHF, knowing that the quadratic function does not admit inverse, and that $\displaystyle \left | X\right | = \sqrt[2]{x^{^2}}$ a modular function have inverse? if yes, how can i find for example y= |x+2|-|3x+2|.

- Oct 4th 2012, 06:13 PMProve ItRe: Inverse function
- Oct 4th 2012, 06:20 PMChipset3600Re: Inverse function
- Oct 4th 2012, 08:52 PMProve ItRe: Inverse function
- Oct 5th 2012, 02:45 AMChipset3600Re: Inverse function
- Oct 5th 2012, 07:40 AMHallsofIvyRe: Inverse function
What is |2|? What is |-2|?

A function is either one-to-one or it is not. I don't know what you mean by "never be". You don't think it is sometimes one-to-one and sometimes not? - Oct 5th 2012, 07:43 AMChipset3600Re: Inverse function
|2|=|-2|=2... The doubt is If there is any modular function that admits inverse?