Question

guys plz solve q.68.... q. in attachment

Answer 1

$log_{b}(a) . log_{c}(b) . log_{a}(c)$
$\frac{ log(a) }{log(b) } . \frac{ log(b) }{ log(c) } . \frac{ log(c) }{ log(a) }$
All the values get cancelled and the value is 1