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  3. a prove b gt defined by bx 7x ...

Question: a prove b gt defined by bx 7x ...

Question details

a) Prove b: \mathbb{R} --> \mathbb{R} defined by b(x) = 7x - 5 is one-to-one and onto.

b) Prove e: \mathbb{N} -->\mathbb{N} defined by e(x) = x2 is one-to-one and onto.

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