Suatu barisan geometri dengan u3 = 60 U7= 960 berapa u 10?

U3 = 60 => ar² = 60 U7 = 960 => ar^6 = 960 U10 = ? ar² = 60 <=> a = 60/r² 60/r² . r^6 = 960 60r⁴ = 960 r⁴ = 16 r = 2 ar² = 60 4a = 60 a = 15 U10 = ar^9 15.2^9 = 7680