Question

Urgeeeent!!
Imi poate rezolva care acest exercitiu? Va rooog!!!!

Answer 1

[tex]\it \log_3 \dfrac{3}{4} = \log_3 4-log_3 3 = \log_3 4-1 \ \ \ \ (*) \\\;\\ \\\;\\ \log_34 -\log_3 \dfrac{4}{3} \stackrel{(*)}{=} \log_3 4- (\log_34-1) =\log_3 4-\log_34 +1 =1[/tex]

Sau :

$\it log_3 4 -log_3\dfrac{4}{3} =log_3 4:\dfrac{4}{3} =log_34\cdot\dfrac{3}{4} = log_3 3 = 1$