$\sin^{-1} \large\frac{4}{5}$$+2 \tan ^{-1} \large\frac{1}{3}$ is equal to :

Question

\[\begin {array} {1 1} (a)\;\frac{\pi}{3} & \quad (b)\;\frac{\pi}{4} \\ (c)\;\frac{\pi}{2} & \quad (d)\;0 \end {array}\]