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Questions  >>  CBSE XII  >>  Math  >>  Relations and Functions
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Q)

Give examples of two functions \(f : N \to Z \) and \(g: Z \to Z\) such that \(g\;o\;f\) is injective but \(g\) is not injective.

(Hint : Consider f(x) = x and g(x) = |x|).    

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