

Baris dan Deret Aritmatika
Presentation
•
Mathematics
•
10th - 11th Grade
•
Medium
Agustinus Sutriono
Used 6+ times
FREE Resource
7 Slides • 6 Questions
1
Baris dan Deret Aritmatika

2
3
4
Multiple Select
Manakah bentuk barisan bilangan di bawah ini :
1, 2, 3, 4, 5 , 6, .....
1+2+3+4+5+6+ ...
7, 5, 3, 1 , ...
10 + 30 + 50 + 70 + ...
5
6
7
Multiple Select
Tentukan Beda dari Baris Aritmatika berikut ini : 5, –2, –9, –16, …
7
-7
8
-8
8
Multiple Choice
Tentukan Beda dari Baris Aritmatika berikut ini : 7, 5, 3, 1, …
1
-1
2
-2
9
10
Rumus suku ke-n dari barisan 5, –2, –9, –16, … adalah …
Diketahui: a = 5
b = –7
Ditanya: rumus suku ke-n barisan aritmatika tersebut = ?
Jawab:
Un=a+(n-1)b
Un=5+(-7n) + 7
Un= - 7n + 12
Un= 7n - 12
11
Multiple Choice
1. Suku pertama berisan aritmatika adalah 9 dan bedanya adalah 3, rumus suku ke-n adalah ...
Un= 3n + 6
Un= 3n + 7
Un= 3n + 8
Un= 3n + 9
12
Multiple Choice
Tentukan Suku ke 1 dan suku ke 5 dari barisan aritmatika berikut : 2, 5, 8, 11, 14,17
2 dan 5
5 dan 8
8 dan 17
2 dan 14
13
Multiple Choice
Suku ke-40 dari barisan 7, 5, 3, 1, … adalah …
– 71
- 72
75
80
Baris dan Deret Aritmatika

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