Your Answer:
Note that permutation is another word for arrangement. A combination is an arrangement where order does not matter, but for a permutation it does. For example
for combinations
{a,b,c}={a,c,b}={c,b,a}=...
because they all contain an a, b and a c
but if their order is important then all of those lists are distinct arrangements
in fact there are six such arrangements of a,b,c:
abc
acd
bac
bca
cab
cba
hope this helps
:)
for combinations
{a,b,c}={a,c,b}={c,b,a}=...
because they all contain an a, b and a c
but if their order is important then all of those lists are distinct arrangements
in fact there are six such arrangements of a,b,c:
abc
acd
bac
bca
cab
cba
hope this helps
:)
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