Question

Calcule:

a) 6! - 5! =
3!

b) 10!
(12-4)!

Answer 1

a) 6.5.4.3.2.1 - 5.4.3.2.1 / 3.2.1 = 720 - 120/ 6 = 100.

b) 10.9.8! / 8! = 10.9 = 90.

espero ter ajudado, sz.