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Mr. Dubey • 100.69K Points
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Q. How many onto (or surjective) functions are there from an n-element (n => 2) set to a 2-element set?

  • (A) 2n
  • (B) 2n - 1
  • (C) 2n - 2
  • (D) 2(2n – 2)
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