Logarithms (HSC SSCE Mathematics Advanced): Flashcards

Exponent $y$ where $a^y = x$

$a > 0$ and $a \neq 1$

$x > 0$ (must be positive)

$\log(x)$, base 10

$\ln(x)$, base $e$

Inverse operations (undo each other)

$\log(100) = 2$

$2^3 = 8$

$e \approx 2.71828$

$x$ (where $x > 0$)