U1=4 r=-2 u8= .........?
Matematika
AlbertEinstenJr
Pertanyaan
U1=4 r=-2 u8= .........?
1 Jawaban
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1. Jawaban SadonoSukirno
Un = a.r^(n-1)
U8 = 4.(-2)^(8-1)
= 4.(-2)^7
= 4.(-128)
= -512