jika (a+b):(a-b) = 1:5 maka (a²-b²):(a²+b²)=
IPS
rahmandika3
Pertanyaan
jika (a+b):(a-b) = 1:5 maka (a²-b²):(a²+b²)=
1 Jawaban
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1. Jawaban Lunung
a + b = 1
a - b = 5
------------ +
2a = 6
a = 3
a - b = 5
3 - b = 5
b = 3 - 5 = -2
(a² - b²) : (a²+ b²)
(3² - (-2)²) : (3² + (-2)²)
(9 - 4) : (9 + 4)
5 : 13