Question

Find the sum of the infinite geometric series: 1.6 + 1.2 + 0.9 + ...
Can someone help me solve this?

Answer 1

sum = a (1-r) here r = 1.2 / 1.6 = 0.75
= 1.6 /( 1 - 0.75)
= 6.4

Answer 2

a/(1-r) = sum to infinity where |r| < 1

Answer 3

oooh, thanks a lot jimmyrep! ^_^ I get it now

Answer 4

good