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Let : f : R → R be defined as f(x) = x – 1 and g : R – {1, – 1} → R be defined as g(x) = 1 – x x 2 2 Then the function fog is:

1. One-one but not onto
2. Onto but not one-one
3. Both one-one and onto
4. Neither one-one nor onto

Correct answer: Neither one-one nor onto

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