Question

Log in baza 1/3 din x= -2

Answer 1

Răspuns

x=9

Explicație pas cu pas:

$\log_{\frac{1}{3}} x=-2\\-\log_3 x=-2\\\log_3 x=2\\x=3^2=9\\Am~folosit~formula:\\\bullet \log_{a^m}b^n= \dfrac{n}{m}\log_a b$