Suku ke 10adalah.....

n10=a×rpangkat n-1 jadi
[tex]8 \times 2 {}^{9 } = 8 \times 1024 = 8192[/tex]

8, 4, 2, ..., U10

U1 = a = 8
U2 = 4

r = U2/U1
r = 4/8
r = 1/2

Un = a . r ^ (n-1)
U10 = 8. (1/2)^9
U10 = 8. (1/512)
U10 = 1/64 .... B