ClaudioOliveraAluna 25/04/2022 A₇ = A₁ + (n -1) r A₃ = 2 A₇= 14 14 = 2 + (7 - 1) r14 = 2 + 6r14 - 2 = 6r 12 = 6r r = 2
ClaudioOliveraAluna
A₇ = A₁ + (n -1) r A₃ = 2 A₇= 14
14 = 2 + (7 - 1) r
14 = 2 + 6r
14 - 2 = 6r 12 = 6r r = 2