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NDA 2013
Exam
NDA
Year
2013
Subject
Mathematics
Chapter
Functions

NDA 2013 · Mathematics · Functions

Let f be a function from the set of natural numbers to the set of...

Let ff be a function from the set of natural numbers to the set of even natural numbers given by f(x)=2xf(x)=2 x. Then ff 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)=2xf(x)=2 x Graph of f(x)=2xf(x)=2 x This is graph for one-one and onto function.
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