Q63 / 180 · COMEDK 2015 · Mathematics

The number of bijective functions from the set A to itself, if $A$ contains 108 elements is

  • A
    108
  • Correct answer
    B
    $(108)$ !
  • C
    $(108)^{2}$
  • D
    $2^{108}$

Solution

Since, number of one-one onto functions from a set A having $n$ elements to itself is $n$ !.

Hence, the correct answer is option: 'B'.

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