Diketahui:
1, 1/4, 1/16, 1/64, ...
Ditanyakan:
un
Jawab:
u1 = a = 1
u2 = ar = 1/4
1(r) = 1/4
r = 1/4
un = arⁿ-¹
= 1(1/4)ⁿ-1
= (1/4)ⁿ/(1/4)
= (1/4)ⁿ. (4/1)
= 4/4ⁿ
Mapel: Matematika
Kelas: 8
Materi: Barisan dan Deret
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Diketahui:
1, 1/4, 1/16, 1/64, ...
Ditanyakan:
un
Jawab:
u1 = a = 1
u2 = ar = 1/4
1(r) = 1/4
r = 1/4
un = arⁿ-¹
= 1(1/4)ⁿ-1
= (1/4)ⁿ/(1/4)
= (1/4)ⁿ. (4/1)
= 4/4ⁿ
Mapel: Matematika
Kelas: 8
Materi: Barisan dan Deret