Change of Base Law (Leaving Cert Mathematics): Quizzes

Calculators only support $\log$ & $\ln$

$\log_bx=\frac{\log_ax}{\log_ab}$

The original base

The new base

The argument of the logarithm

The definition of logarithms

$a=10$ or $a=e$

The bigger base

$y=4$

$2$

$x=8$ and $x=\frac{1}{8}$