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U6 = 256
Dit : U10 barisan geo
Jwb :
U3 = 4
ar² = 4
U6 = 256
ar^5 = 256
ar^5/ ar² = 256/4
r³ = 64
r = 4
ar² = 4
a. (4)² = 4
16 a = 4
a = 4/16
a = 1/4
Suku ke-10.. :)
U10 = ar^9
U10 = 1/4 . 4^9
U10 = 65536
coba dicek lg ya :)