Question

Tolong dong buat besok soalnya

U2=16
U6=1
U8 ?
tolong barisan geometri

Answer 1

U2= ar = 16
u6 = ar^5 = 1

r^4= 1/16
r =1/2

a r = 16
a* 1/2= 16
a = 32

u8= ar^7 
     = 32 x (1/2)^7
    = 32 x 1/128
   = 32 / 128
  = 1/4