Question

Log en base 4 de 0,25 .

Answer 1

0.25 = 1/4

${\log_4\left(\frac{1}{4}\right)=x}\\\\{\log_4(4^{-1})=x}\\\\{4^{\log_4(4^{-1})}=4^x}\\\\{4^{-1}=4^x}\\\\{-1=x}\\\\{\boxed{x=-1}}$