Question

cacule a soma dos 6 primeiros termos da pg (1,9,81...) ​

Answer 1

s = a1.(qⁿ - 1) / q -1

s = 1.(9^6 - 1) / 9 -1

s = (9^6 - 1) / 8

s = (531440) /8

s = 66430 ✓