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Verified answer
A = 64r = U2/U1
= -32/64
= -1/2 >>> Disederhanakan, pembilang dan penyebut dibagi 32
U8 = a × r^8-1
= 64 × -1/2^7
= 64 × -1/128
= -64/128
= -1/2 >>> Disederhanakan, pembilang dan penyebut dibagi 64
Jawaban (D)
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