Answer :
Using the principle of permutation, evaluating 4P4 gives a value of 24
The permutation formula goes thus ::
- [tex]nPr = \frac{n!}{n-r!} [/tex]
Using the formula :
[tex]4P4 = \frac{4!}{(4 - 4)!} [/tex]
[tex]4P4 = \frac{4!}{0!} [/tex]
[tex]4P4 = \frac{4\times 3 \times 2 \times 1}{1} [/tex]
[tex]4P4 = \frac{24}{1} = 24 [/tex]
Therefore, the Value of 4P4 is 24
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