Find the value of ${\tan ^{ – 1}}\left( {\tan \frac{{5\pi }}{6}} \right) + {\cos ^{ – 1}}\left( {\cos \frac{{13\pi }}{6}} \right)$.
[NCERT,Exemplar.3,Q.1,Page.35]

We know that, ${\tan ^{ - 1}}\tan x = x;x \in \left( { - \frac{\pi }{2},\frac{\pi }{2}} \right)$ and ${\cos ^{ - 1}}\cos x = x;x \in [0,\pi ]$$therefore, {\tan…

Continue Reading Find the value of ${\tan ^{ – 1}}\left( {\tan \frac{{5\pi }}{6}} \right) + {\cos ^{ – 1}}\left( {\cos \frac{{13\pi }}{6}} \right)$.
[NCERT,Exemplar.3,Q.1,Page.35]