No.
The number of permutations or combinations of 0 objects out of n is always 1.
The number of permutations or combinations of 1 object out of n is always n.
Otherwise, yes.
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Yes
There are 120 permutations and 5 combinations.
On a calculator: 43C5 = 962598 This is for combinations and not permutations, so in essence, the order of the 5 number combinations does not matter. Yours Truly, Mr Greatness
The number of combinations - not to be confused with the number of permutations - is 2*21 = 42.
There are only four combinations but there are 8 permutations.