Question

Calcule:
a) 4!
b) 7!
c) 9!/7!
d) (4!-2!-0!)/1 ​

Answer 1

a) 4! = 4×3×2×1 = 24

b) 7! = 7×6×5×4×3×2×1 = 5040

c) 9!/7! = 362880/5040 = 72

d) (4!-2!-0!)/1! = (24-2-1)/1 = 21