Question

aratati ca (1+1/2+1/3+1/6) la puterea 2- (1+1/2+1/3+1/6)=2 dau coroana !! Ajutatima va rog mult! <3

Answer 1

Răspuns:

Explicație pas cu pas:

Answer 2

Răspuns:

Explicație pas cu pas:

(1+1/2+1/3+1/6)^2- (1+1/2+1/3+1/6)

= (1+1/2+1/3+1/6)(1+1/2+1/3+1/6 - 1)

= (1+1/2+1/3+1/6)(1/2+1/3+1/6)

= (6/6 + 3/6 + 2/6 + 1/6)(3/6 + 2/6 + 1/6)

= 12/6*6/6 = 2*1 = 2