# $2 \tan h^{-1} \large\frac{1}{2}$ is equal to :

$\begin {array} {1 1} (a)\;0 & \quad (b)\;\log 2 \\ (c)\;\log 3 & \quad (d)\;\log 4 \end {array}$

$(c) \log 3$
answered Feb 27, 2014 by