Saved Bookmarks
| 1. |
$ \tan ^{-1}\left(\frac{1}{2}\right)+\tan ^{-1}\left(\frac{1}{5}\right)+\tan ^{-1}\left(\frac{1}{8}\right) $(a) $ \frac{\pi}{3} $(c) $ \frac{\pi}{6} $(b) $ \frac{\pi}{4} $(d) $ \frac{\pi}{2} $ |
| Answer» | |