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:
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:
