Barisan Geometri 8-1
Quiz
•
Mathematics
•
1st Grade
•
Medium
Seprianto Gisisi
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Apa yang dimaksud dengan rasio pada barisan geometri?
Selisih antara dua suku berurutan.
Hasil bagi antara dua suku berurutan.
Jumlah dari dua suku berurutan.
Perkalian antara dua suku berurutan.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Manakah dari barisan berikut yang merupakan barisan geometri?
2, 4, 6, 8, ...
1, 3, 9, 27, ...
5, 10, 15, 20, ...
1, 4, 9, 16, ...
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rumus suku ke-n pada barisan geometri adalah...
Un = a + (n-1)b
Un = ar^(n-1)
Sn = n/2 (a + Un)
Sn = a(r^n - 1) / (r-1)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui barisan geometri 2, 4, 8, ... Suku ke-5 adalah...
10
12
16
32
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jika suku pertama suatu barisan geometri adalah 3 dan rasionya 2, maka suku ke-3 adalah...
6
9
12
7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suku tengah dari barisan geometri 2, 4, 8, 16, 32 adalah...
4, 8, dan 16
4 dan 16
16
8
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Diketahui barisan geometri 9, 3, 1, ... Rasio dari barisan tersebut adalah...
3
2/3
1/3
-3
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