Question

aflati raportul
$\frac{b}{a}$
daca se stiu urmatoarele: a+b=12 si a^2-b^2=144

Answer 1

a^2 - b^2 = 144

(a + b) ( a - b)  =144

12 x (a - b) = 144

a - b = 144 : 12 = 12

a = 12 + b

a + b = 12

12 + b + b = 12

2b = 12 - 12 = 0

b = 0

a = 12

b / a = 0/12 = 0