Question

$frac{log_{3} 5 }{log_{16} 5}$; 133log$_{13} sqrt[7]{13}$
$frac{54}{7 ^{log7}6 }$

Answer 1

log(3)5=1/log(5)3    log(16)5=1/log(5)16      log(3)5/log(16)5=4log(5)2/log(5)3=4log(3)2

54/7^log(7)6=54/6=9

13log(13)(13)^1/7=13*1/7=13/7

Answer 2

Всё решаем по формулам..........