Materi : Barisan dan Geometri
Pola barisan geometri
-2, 2, -2, 2, -2, ...
Suku pertama = -2 , Rasio = -1
Rumus Pola :
Un = (-2)ⁿ(½)ⁿ-¹
Un = (-1)ⁿ(2)ⁿ(2)-ⁿ+¹
Un = (-1)ⁿ(2)
Semoga bisa membantu
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Materi : Barisan dan Geometri
Pola barisan geometri
-2, 2, -2, 2, -2, ...
Suku pertama = -2 , Rasio = -1
Rumus Pola :
Un = (-2)ⁿ(½)ⁿ-¹
Un = (-1)ⁿ(2)ⁿ(2)-ⁿ+¹
Un = (-1)ⁿ(2)
Semoga bisa membantu