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Computer Science Engineering (CSE)
Discrete Structure (DS)
Q. How many onto (or surjective) functions are there from an n-element (n => 2) set to a 2-element set? (Solved)
1. 2n
2. 2n - 1
3. 2n - 2
4. 2(2n – 2)
c. 2n - 2
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