Question

Solutia logaritmului va rog

Answer 1

Salut,

$log_{30}16=log_{30}2^4=4\cdot log_{30}2=4\cdot log_{30}\dfrac{30}{15}=4(log_{30}30-log_{30}15)=\\\\=4[1-log_{30}(3\cdot 5)]=4(1-log_{30}3-log_{30}5)=4(1-a-b).$

Green eyes.