
Barisan Aritmatika dan Geometri
Authored by Karina Zahra Aqila
Mathematics
6th - 8th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Manakah yang termasuk rumus barisan Aritmatika?
a+(n-1)b
a.rn-1
n/2(a+Un)
n/2(2a+(n-1)b)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika suku ketiga dan ketujuh suatu barisan aritmetika adalah 11 dan 19. Maka suku ke-11 dari barisan tersebut adalah ....
25
26
27
28
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui barisan aritmetika: 5, 7, 9, 11, ....
Suku ke-15 dari barisan tersebut adalah ....
30
31
32
33
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui barisan aritmetika suku keempat sama dengan 8 dan
suku kedua sama dengan 16. Suku ke-8 adalah....
8
-8
14
-14
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pada sebuah barisan geometri diketahui bahwa suku pertamanya adalah 3 dan suku ke-9 adalah 768. Suku ke-7 barisan itu adalah …...
72
64
116
192
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui suatu barisan 2, 6, 12, 20, 30, …
tentukan suku ke-n adalah...
nn+1
n(n+1)
4n-2
3n-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui sebuah barisan geometri 3, 6, 12....
maka suku ke-7 dari barisan geometri tersebut...
192
219
129
119
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