Gate CS-2012 Question Paper With Solutions

Q. 37 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)

Answer: (C)

Explanation:

Gate CS-2012 Question Paper With Solutions

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