Question

what are the log formula

Answer 1

log x^n = n log x

..................

Answer 2

The basic log formulas are as follows..

$d \div dx \: log(x) = 1 \div x$
$d \div dx \: a {}^{x} = a {}^{x} \times log_{e}(a)$
$log \: e \: = 1$
$d \div dx \:( log_{a}x) = 1 \div \: x \: log_{e}(a)$