Penjelasan dengan langkah-langkah:
16, 13, 10, 7
a = 16
b = 13 - 16 = -3
Rumus suku ke-n
Un = a + (n - 1) b
Un = 16 + (n - 1) -3
Un = 16 - 3n + 3
Un = 19 - 3n
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Un = 19 - 3n
Penjelasan dengan langkah-langkah:
16, 13, 10, 7
a = 16
b = 13 - 16 = -3
Rumus suku ke-n
Un = a + (n - 1) b
Un = 16 + (n - 1) -3
Un = 16 - 3n + 3
Un = 19 - 3n