Question

Simplifique as frações a) 8!/7!
B) 3!/5
C) 8!/6!
D) 7!/8! * 9!/5!

Answer 1

a) 8!/7! = 8.7! / 7! = 8
B) 3!/5! = 3! / 5.4.3! = 1/20
C) 8!/6! = 8.7.6! / 6! = 8.7 = 56
D) 7!/8! * 9!/5! =
7!.9!/8!.5! =
7.6. 5!. 9.8! /8!.5! = 42. 9 = 378