Question

ME AJUDEM PFV!
Simplifique
a) (a-1)! (a – 2)!
b) (x + 1)! (x + 2)!
c) P! 3! (P-3​)

Answer 1

Resposta:

a)(a-1)(a-2)/(a-2)=a-1

anule (a-2)/(a-2)

b)(x+1)/(x+2)(x+1)= 1/x+2

anule (x+1)/x+1)

c)p!(p-3)!/3!= p!(p-3)!/3x2x1= p!(p-3)!/6

Espero ter ajudado, tenha bons estudos !