
Barisan Aritmatika Matematika Wajib Kelas XI
Presentation
•
Mathematics
•
11th Grade
•
Easy
Iwi Anggriani
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7 Slides • 3 Questions
1
Barisan Aritmatika
Matematika Wajib Kelas XI
Oleh : Iwi Anggriani, S. Pd
By Iwi Anggriani
2
Poll
Apa kabar semuanya hari ini? sudah siapkah untuk belajar?
Sehat. Siap belajar
Sehat. Semangat untuk belajar
Sehat dan semangat
3
Pengertian Barisan Aritmatika
Perhatikan Barisan Bilangan : 3, 7, 11, 15,...
Barisan Aritmatika adalah Barisan bilangan yang polanya memiliki selisih dua suku yang berurutan selalu tetap.
Some text here about the topic of discussion
4
Rumus Barisan Aritmatika
Un = a + ( n - 1 ) b
Un = Suku ke- n
a = Suku Pertama
b = Selisih = U2 - U1
n = Banyak suku
Some text here about the topic of discussion
5
Contoh Soal Barisan Aritmatika
Diketahui barisan aritmatika 2, 6, 10, 14, ... Tentukan Besar suku ke - 40 ?
Penyelesaian :
a = 2
b = 6 - 2 = 4
n = 40 maka
U40 = a + ( n - 1 ) b
= 2 + ( 40 - 1 ) 4
= 158
Some text here about the topic of discussion
6
Kesimpulan
Barisan Aritmatika adalah Barisan bilangan yang polanya memiliki selisih dua suku yang berurutan selalu tetap.
Rumus Barisan Aritmatika :
Un = a + ( n - 1 ) b
Un = Suku ke- n
a = Suku Pertama
b = Selisih = U2 - U1
n = Banyak suku
Some text here about the topic of discussion
7
Multiple Choice
Perhatikan barisan aritmatika berikut 5, 9, 13, 17,... Dua angka berikutnya pada barisan tersebut adalah ....
20, 24
21, 25
22, 26
23, 27
8
Multiple Choice
Suku keempat suatu barisan aritmatika sama dengan 19, sedangkan suku kesebelas sama dengan 40. Berapak suku pertama barisan aritmatika tersebut...
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Biodata Peserta
Nama : IWI ANGGRIANI, S. Pd
Instansi : SMA Negeri 9 Kota Bengkulu
10
TERIMA KASIH
Barisan Aritmatika
Matematika Wajib Kelas XI
Oleh : Iwi Anggriani, S. Pd
By Iwi Anggriani
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