JEE Math Practice Question
Let f, g : N $$ \to $$ N such that f(n + 1) = f(n) + f(1) $$\forall $$ n$$\in$$N and g be any arbitrary function. Which of the following statements is NOT true?
- A.If g is onto, then fog is one-one
- B.f is one-one
- C.If f is onto, then f(n) = n $$\forall $$n$$\in$$N
- D.If fog is one-one, then g is one-one
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