\( \mathrm{Creck} \) the injectivity and surjectivity of the following functions: (i) \( f: N \r...

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\( \mathrm{Creck} \) the injectivity and surjectivity of the following functions:
(i) \( f: N \rightarrow N \) given by \( f(x)=x^{2} \)
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