Question

calcule a soma S=1/2+ 1/4+ 1/8...

Answer 1

Ola Biell

PG

u1 = 1/2
u2 = 1/4
u3 = 1/8

q = u2/u1 = (1/4)/(1/2) = (1/4)*(2/1) = 2/4 = 1/2 

soma infinita

Sn = u1/(1 - q) 

Sn = (1/2)/(1 - 1/2) = (1/2)/(1/2) = 1