Jawaban:
B. Un = 5n - 1
Penjelasan dengan langkah-langkah:
4, 9, 14, 19, 24,...
a = 4
b = 5
Un = a + (n-1)b
Un = 4 + (n-1)5
Un = 5n - 5 + 4
Un = 5n - 1 (B).
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Jawaban:
B. Un = 5n - 1
Penjelasan dengan langkah-langkah:
4, 9, 14, 19, 24,...
a = 4
b = 5
Un = a + (n-1)b
Un = 4 + (n-1)5
Un = 5n - 5 + 4
Un = 5n - 1 (B).