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  • Question 1
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    Let  p(x)=a2+bx, q(x)=lx2+mx+n. If p(1) – q (1) = 0, p(2) – q(2) = 1 and p(3) – q(3) = 4, then p(4) – q(4) equals

  • Question 2
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    If the mappings f: A →B and g: B →C are both bijective, then the mapping A→C is

  • Question 3
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    A function f : X → Y is defined to be one – one (or injective), if

  • Question 4
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    A function f : X → Y is said to be onto if

  • Question 5
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    A function f : X → Y is said to be surjective if

  • Question 6
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    For any two non-empty sets X,Y  a  function f : X → Y is said to be bijective, if f is

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