Question

calcule a soma dos infinitos termos de cada pg a seguir letra a) (12,6,3) b) ( 16,-4,1,...)

Answer 1

a) S -12 -6 -3 = (3/2)/(1 -1/2)
S -21 = 6/2
S = (42 +6)/2
S = 24

b) S -16 +4 -1 = (1/4)/(1 -(-1/4))
S -13 = 1/4 . 4/5
S = (260 + 4)/20
S = 13.2