Tentukan suku ke-7 pada barisan geometri 9, 3, 1, 1/3, 1/9, …
Jawaban Terkonfirmasi
A = U1 = 9
r = U2/U1
r = 3/9
r = 1/3
U7 = a.r^6
U7 = 9.(1/3)^6
U7 = 9.1/729
U7 = 1/81
Tentukan suku ke-7 pada barisan geometri 9, 3, 1, 1/3, 1/9, …
A = U1 = 9
r = U2/U1
r = 3/9
r = 1/3
U7 = a.r^6
U7 = 9.(1/3)^6
U7 = 9.1/729
U7 = 1/81