diketahui barisan aritmatika 4,8,12,16,...tentukan suku ke152
Matematika
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Pertanyaan
diketahui barisan aritmatika 4,8,12,16,...tentukan suku ke152
2 Jawaban
-
1. Jawaban Anonyme
Barisan Aritmetika.
4, 8, 12, 16, ...
a = U₁ = 4
b = U₂ - U₁ = 8 - 4 = 4
Un = a + (n - 1)b
U₁₅₂ = 4 + (152 - 1)(4)
= 608 -
2. Jawaban janrian
S1 = 4, S2 = 8, S3 = 12, S4 = 16
rumus Sn = 4(n)
maka S152 = 4(152) = 608
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