Bantu dong kak mau di kumpul besok tercepat dan benar mendapat jawaban terbaik

U1 = 1000
U2 = 4 . 1000 = 4000
U3 = 4 . 4000 = 16000
U4 = 4 . 16000 = 64000

r = U2/U1 = 4000/1000 = 4

S10 = [a{r^n - 1}] / r-1
= [1000 {4^10 - 1}] / 4-1
= [1000 {1048576 - 1}] / 3
= 1000 (1048575) / 3
= 349525000