Question

Calcule a soma dos termos da P.G (2,1,1/2,1/4,...)

Answer 1

s=a1 /1-q

s=2 /1-(1/2)

s=2 /(1/2)

s=2 × (2/1)

s= 4

Answer 2

resolução!

q = a2 / a1

q = 1 / 2

S = a1 / 1 - q

S = 2 / 1 - 1/2

S = 2 / 1/2

S = 2 * 2/1

S = 4