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Let A{x :-1lt=xlt=1}a n df: Avec such th...

Let `A{x :-1lt=xlt=1}a n df: Avec` such that `f(x)=x|x|,` then `f` is (a) bijection (b) injective but not surjective (c)Surjective but not injective (d) neither injective nor surjective

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