Diketahui barisan bilangan sebagai berikut : 6, 10, 14, 18, .... Suku ke-11 barisan tersebut adalah …Soal 7JawabanA.42B.46C.41D.51
Question
Diketahui barisan bilangan sebagai berikut : 6, 10, 14, 18, .... Suku ke-11 barisan tersebut adalah …Soal 7JawabanA.42B.46C.41D.51
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Solution 1
Barisan tersebut adalah barisan aritmatika dengan beda (d) 4 (10-6 = 4, 14-10 = 4, 18-14 = 4).
Rumus suku ke-n pada barisan aritmatika adalah:
Un = a + (n-1) * d
Dimana: Un = suku ke-n a = suku pertama n = posisi suku yang dicari d = beda antar suku
Jadi, suku ke-11 (U11) adalah:
U11 = 6 + (11- Knowee AI is a powerful AI-powered study tool designed to help you to solve study problem.
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