1- Fatorial
a) 5! =
b) 3! =
c) 4! =
d) 5! / 2! 3! =
e) 13! / 10!4! =
Soluções para a tarefa
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a) 5! =
5×4×3×2×1 = 120
b) 3! =
3×2×1 = 6
c) 4! =
4×3×2×1 = 24
d) 5! / 2! 3! =
5×4×3!/2!3! =→ 5×4/2! → 20/2 = 10
e) 13! / 10!4! =
13×12×11×10!/10!4! → 13×12×11/4! → 1716/4×3×2×1 → 1716/24 = 71,5
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