
RELASI
Presentation
•
Mathematics
•
6th - 8th Grade
•
Practice Problem
•
Easy
Iska Agustina
Used 7+ times
FREE Resource
11 Slides • 2 Questions
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01
Materi Prasyarat:
Himpunan &
Bilangan
Pengertian Himpunan
Contoh Himpunan
Penulisan Himpunan
Bilangan
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Pengertian Himpunan
Himpunan adalah kumpulan objek yang
didefinisikan dengan jelas
Contoh himpunan:
Himpunan gajah di padang rumput
Contoh Bukan Himpunan:
Himpunan berkaki empat
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Dengan kata-kata
A =
𝒔𝒂𝒑𝒊, 𝒌𝒂𝒎𝒃𝒊𝒏𝒈, 𝒈𝒂𝒋𝒂𝒉, 𝒌𝒆𝒓𝒃𝒂𝒖, 𝒌𝒖𝒅𝒂
B = 𝑨𝒏𝒅𝒊, 𝑩𝒆𝒕𝒊, 𝑪𝒊𝒏𝒕𝒂, 𝑫𝑰𝒎𝒂𝒔, 𝑬𝒍𝒍𝒂
C = {𝟐, 𝟒, 𝟔, 𝟖}
Dengan mendaftar
anggotanya
C = {𝒙|𝒙 < 𝟏𝟎,𝒙 𝒃𝒊𝒍. 𝒈𝒆𝒏𝒂𝒑}
Dengan notasi
Himpunan hewan berkaki empat
Himpunan siswa kelas 8 di SMPN 6
Blitar
Himpunan bilangan genap yang kurang
dari 10
Penulisan Himpunan
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Bilangan
Bilangan Asli : 𝟏, 𝟐, 𝟑, 𝟒, …
Bilangan Cacah : 𝟎, 𝟏, 𝟐, 𝟑, …
Bilangan Genap : 𝟐, 𝟒, 𝟔, 𝟖, …
Bilangan Ganjil : 𝟏, 𝟑, 𝟓, 𝟕, …
Bilangan Prima : 𝟐, 𝟑, 𝟓, 𝟕, 𝟏𝟏, …
Bilangan Bulat : … , −𝟑, −𝟐, −𝟏, 𝟎, 𝟏, 𝟐, 𝟑, …
Bilangan Bulat Positif : 𝟏, 𝟐, 𝟑, 𝟒, …
Bilangan Bulat Negatif : −𝟏, −𝟐, −𝟑, −𝟒, …
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Multiple Choice
0, 1 , 2, 3, 4, ... adalah bilangan ...........
manakah jawaban yang paling tepat?
bilangan bulat
bilangan asli
bilangan cacah
bilangan real
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02
Relasi
Pengertian Relasi
Contoh Relasi
Cara Menyatakan Relasi
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Pengertian Relasi
Relasi adalah aturan yang memasangkan anggota himpunan A ke anggota
Himpunan B
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Contoh Relasi
Contoh Relasi:
Risa, Santi, Adip, dan Bara sedang membeli buku di toko
buku. Risa dan Santi membeli novel. Adip membeli buku
komputer dan buku kesehatan. Bara membeli buku
pertanian.
Misalkan:
A = {Risa, Santi, Adip, Bara}
B = {Novel, Buku Komputer, Buku Kesehatan, Buku
Pertanian}
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Open Ended
Contoh relasi dalam kehidupan sehari-hari selain siswa dan umurnya (sebutkan 3)
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Cara Menyatakan Relasi
● Diagram Panah
● Diagram Kartesius
● Himpunan Pasangan Berurutan
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Contoh Soal
Diketahui A = {1, 2, 3, 4, 5, 6} dan B = {1, 2, 3, 5, 7}. Relasi R dari
himpunan A ke himpunan B adalah “satu kurangnya dari”
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2
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