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For the group Sn of all permutations of n distinct symbols, what is the number of elements in Sn?(a) n(b) n-1(c) 2n(d) n!The question was asked by my college director while I was bunking the class.This key question is from Overview in chapter Cryptography Overview, TCP/IP and Communication Networks of Cryptograph & Network Security

Answer» CORRECT CHOICE is (d) n!

Easiest explanation: There there are n DISTINCT SYMBOLS there will be n! elements.


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