Applicare la formula: $\log_{b}\left(x\right)-\log_{b}\left(y\right)$$=\log_{b}\left(\frac{x}{y}\right)$, dove $b=10$, $x=1000$ e $y=100$

Applicare la formula: $\frac{a}{b}$$=\frac{a}{b}$, dove $a=1000$, $b=100$ e $a/b=\frac{1000}{100}$

Applicare la formula: $\log_{a}\left(b\right)$$=logf\left(b,a\right)$, dove $a=10$, $b=10$ e $a,b=10,10$