
Barisan & Deret Geometri
Presentation
•
Mathematics
•
10th Grade
•
Practice Problem
•
Medium
Elisa El
Used 2+ times
FREE Resource
13 Slides • 8 Questions
1
2
3
4
5
6
7
Multiple Choice
Rumus untuk menentukan suku ke-n pada barisan geometri adalah ... .
a+(n−1)b
2n(2a+(n−1)b)
arn−1
r−1a(rn−1), r>1
1−ra(1−rn), r<1
8
Multiple Choice
Rasio dari barisan 2716, 98, 34, 2, ... adalah...
43
34
23
32
31
9
Multiple Choice
Diketahui 9, 3, 1, 31, ... suku ke-7 adalah...
2431
811
271
721
641
10
11
12
13
Multiple Choice
Untuk menentukan jumlah suku ke-n pada deret geometri jika diketahui r>1 adalah ... .
r−1a(rn−1)
r−1a(rn−1)
1−ra(r1−n)
1−ra(1−rn)
1−ra
14
Multiple Choice
Jumlah 5 suku pertama dari deret 3+6+12+⋯ adalah...
62
84
93
108
152
15
16
17
18
Multiple Choice
Jika suku pertama suatu deret geometri 16 dan rasio 21 , maka jumlah tak hingga deret tersebut adalah . . .
8
16
32
64
128
19
Multiple Choice
Jumlah suatu deret geometri tak hingga adalah 30 dengan rasio 32 .
Suku pertama deret tersebut adalah…
2
4
6
8
10
20
Multiple Choice
Sebuah ayunan mencapai lintasan pertama sejauh 90 cm, dan lintasan berikutnya hanya mencapai 85 dari lintasan sebelumnya. Panjang lintasan seluruhnya hingga ayunan berhenti adalah … cm.
120
144
240
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260
21
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