Question

Помогите решить, с решением: log3(5)-log3(5/27)

Answer 1

$Log_{3}5-Log_{3} \frac{5}{27} =Log_{3} (5:\frac{5}{27} )=Log_{3} 27=3$

Answer 2

$\tt \log_35-\log_3\frac{5}{27} =\log_3(5:\frac{5}{27} )=\log_3(5\cdot\frac{27}{5} )=\log_327=\log_33^3=3$