Nếu \(a > 0,b > 0\) thỏa mãn \({\log _4}a = {\log _6}b = {\log _9}\left( {a + b} \right)\) thì \(\dfrac{a}{b}\) bằng:
A.\(\dfrac{{\sqrt 5 - 1}}{2}.\)
B.\(\dfrac{{\sqrt 5 + 1}}{2}.\)
C.\(\dfrac{{\sqrt 3 - 1}}{2}.\)
D.\(\dfrac{{\sqrt 3 + 1}}{2}.\)
A.\(\dfrac{{\sqrt 5 - 1}}{2}.\)
B.\(\dfrac{{\sqrt 5 + 1}}{2}.\)
C.\(\dfrac{{\sqrt 3 - 1}}{2}.\)
D.\(\dfrac{{\sqrt 3 + 1}}{2}.\)
Loga
Hóa Học lớp 12
