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Sagot :
Answer:
A. [tex]\frac{n!}{(n-r!)r!}[/tex]
Step-by-step explanation:
The formula for combinations is: [tex]\frac{n!}{(n-r!)r!}[/tex].
The formula for permutations is: [tex]\frac{n!}{(n-r!)}[/tex]
So, the correct answer is A.
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