$(i)$
$(ii)$
Evaluate the following: (i) $\tan \left\{2 \tan ^{-1}(1 / 5)-\pi / 4\right\}$ (ii) $\operatorname{Tan}\left\{1 / 2 \sin ^{-1}(3 / 4)\right\}$
Evaluate the following: (i) $\tan \left\{2 \tan ^{-1}(1 / 5)-\pi / 4\right\}$ (ii) $\operatorname{Tan}\left\{1 / 2 \sin ^{-1}(3 / 4)\right\}$