
Barisan Geometri 1
Authored by Heri Sugiarto
Mathematics
10th Grade
Used 24+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Barisan berikut ini yang merupakan barisan geometri adalah ...
2, 6, 9, 12, ---
2, 6, 18, 54, ...
2, 4, 6, 8, ...
2, 4, 8, 24, ...
2, 4, 8, 12, ...
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika 24, 12, 6, ... adalah barisan geometri, maka rasio (r) = ....
2
3
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Rumus suku ke-9 barisan geometri adalah ....
Un = a.b(n - 1)
Un = a.r(n - 1)
Un = a.rn
U9 = a.r9
U9 = a.r8
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Pertambahan penduduk suatu kota setiap tahun mengikuti barisan geometri. Pada tahun 1998 pertambahannya 42 orang, tahun 2000 pertambahannya 168 orang. Pertambahan penduduk kota itu pada tahun 2002 adalah ....
1344 orang
672 orang
662 orang
572 orang
336 orang
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Suku ke-10 dari barisan 64, 32, 16, 8, 4, ... adalah ....
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Rasio dari barisan geometri 3, -12, 48, -192, adalah ....
4
-4
2
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Suku ke-16 dari barisan 2, 10, 50, ... adalah ....
U16 = 2.516
U16 = 1016
U16 = 1015
U16 = 2.515
U16 = 5.216
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