simplifique as expressões? (fatorial)?

A)8!/9!

B)15!/13!

C)4!6!

D)6!/5!2!

E)8!/4!6!

F)2!*4!/4!4!

por favor me ajudem to resolvendo aki mais preciso de nota 10 nesse trabalho então tenho q ter certeza que vai estar tudo certo

muiticimo obrigada

bjinhus

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