1/x+1/y=5 dan 1/x-1/y=1 tentukan himpunan penyelesaian dari spldv
Jawab:
Penjelasan dengan langkah-langkah:
1/x = a
1/y = b
1/x + 1/y = 5 → a + b = 5
1/x – 1/y = 1 → a – b = 1
a + b = 5
a – b = 1
————- +
2a = 6
a = 6 : 2
a = 3
a + b = 5
3 + b = 5
b = 5 – 3
b = 2
1/x = a
x = 1/a
x = 1/3
1/y = b
1/y = 2
y = 1/2
HP = { (1/3, 1/2) }
Detail Jawaban
Kelas 8
Mapel 2 – Matematika
Bab 3 – Sistem Persamaan
Kode Kategorisasi : 8.2.3