Question

Anybody understand how Permutations are applied? Why is it necessary to use that method when there is another way of doing it simpler...

Answer 1

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Answer 2

Permutations are applied when you have \(n\) objects and need to know how many ways to list \(k\) of them.

Answer 3

They are helpful when analyzing problems.

Answer 4

Sometimes you are using permutations without even realizing it.

Answer 5

In fact, permutations are extremely simple to begin with.

Answer 6

\[
^{n}P_k = \frac{n!}{(n-k)!} = n(n-1)(n-2)\ldots (n-k+1)
\]It's reall

Answer 7

It's really simple.

Answer 8

Thanks :D

Answer 9

the way i remember, permutations are used when order of listing counts, combinations are used when order does not count