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Jawabannya:Mapel. : Matematika
Bab. : Barisan dan Deret Bilangan
Pembahasan:
b = U2 - U1
b = 0 - (-2)
b = 2
Maka :
Un = a + (n - 1). b
Un = -2 + (n - 1). 2
Un = -2 + 2n - 2
Un = 2n - 2 + 2
Un = 2n - 4 → Jwbnya
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