Diketahui barisan geometri u4=2,U6=1/2. tentukan suku ke 2 barisan itu.
U4 -> a.r3 = 2
u6 -> a.r5 = 1/2
a = 2/r3
(2/r3).r5 = 1/2
r2 = 1/4
r = 1/2
a.1/8 = 2
a = 16
u2 = a.r
= 16.1/2
= 8
Diketahui barisan geometri u4=2,U6=1/2. tentukan suku ke 2 barisan itu.
U4 -> a.r3 = 2
u6 -> a.r5 = 1/2
a = 2/r3
(2/r3).r5 = 1/2
r2 = 1/4
r = 1/2
a.1/8 = 2
a = 16
u2 = a.r
= 16.1/2
= 8