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Please only answer if you're 100% sure! Will upvote immediately if thats the case Prove whether the following functions are injective, surjective, or bijective: (a)

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Please only answer if you're 100% sure! Will upvote immediately if thats the case

Prove whether the following functions are injective, surjective, or bijective: (a) f:Rfwith f(n) 2n/(n1) (b) g:ZZ+ with f(n) n5 (c) gof (d) f-1

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