Question 1143679

Hi there; looking for help with this problem. "Show that {{{ log(a/b)=-log(b/a) }}}"
<pre>Using right side: {{{matrix(1,3, log ((a/b)), "=", highlight(- log ((b/a))))}}}
{{{highlight_green(matrix(1,5, highlight(- log ((b/a))), "=", log ((b/a))^(- 1), "=", highlight(log ((a/b))))))}}}