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Let f be a function from the set of natural numbers to the set of even natural numbers given by f(x)=2 x . Then f is

Options

  1. Aone to one but not onto
  2. Bonto but not one-one
  3. Cboth one-one and onto
  4. Dneither one-one nor onto

Correct answer

C. both one-one and onto

Step-by-step solution

f(x)=2 x Graph of f(x)=2 x This is graph for one-one and onto function.

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