" 84.The sum of the series "log_(a)b+log_(a^(2))b^(2)+log_(a^(3))b^(3)+.......log_(a^(n))b^(n)" is given by "

The value of log_(b)a+log_(b^(2))a^(2) + log_(b^(3))a^(3) + ... + log_(b^(n))a^(n)

log_(e^(2))^(a^(b))*log_(a^(3))^(b^(c))log_(b^(4))^(e^(a))

Find the sum of n terms of the series log a+log((a^(2))/(b))+log((a^(3))/(b^(2)))+log((a^(4))/(b^(3)))

log (a^(2)/b)+log(a^(4)/b^(3)) + log (a^(6)/b^(3))+…… +log ((a^(2n))/b^(n))=?

The sum of the series log_(9)3+log_(27)3-log_(81)3+log_(243)3- ....... is a) 1-log_(e)2 b) 1+log_(e)2 c) log_(e)2 d) log_(e)3

log_(b)(a^((1)/(2)))*log_(c)b^(3)*log_(a)(c^((2)/(3))) is equal to