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Relations and F...

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  • Question 1
    1 / -0

    Let A be the set of all 50 students of Class X in a school. Let f : A → N be function defined by f (x) = roll number of the student, f is

  • Question 2
    1 / -0

    If N is the set of integers f : N → N, given by f(x) = 2x is

  • Question 3
    1 / -0

    If R is the set of real numbers, a function f:R→R defined as f (x) = x2, then f is

  • Question 4
    1 / -0

    Which of the following functions from Z to Z is a bijection?

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