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What is the function of a chin?

If the function and it's inverse function become same or equal ,then what is the name of da function?

  • -1 F (x)=F(x) when it happens,what type of function is that then? Like, we call it 'even function' when f(-x)=f(x)

  • Answer:

    If X is a set, then the identity function on X is its own inverse such a function is called an involution

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