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1. |
Let S be a set of n>0 elements. Let be the number Bᵣ of binary relations on S and let Bf be the number of functions from S to S. The expression for Bᵣ and Bf, in terms of n should be ____________ |
A. | n² and 2(n+1)² |
B. | n³ and n⁽ⁿ⁺¹⁾ |
C. | n and n⁽ⁿ⁺⁶⁾ |
D. | 2⁽ⁿ*ⁿ⁾ and nⁿ |
Answer» E. | |