Saved Bookmarks
| 1. |
\frac { \sin 50 ^ { \circ } } { \cos 40 ^ { \circ } } + \frac { \csc 40 ^ { \circ } } { \sec 50 ^ { \circ } } - 4 \cos 50 ^ { \circ } \csc 40 ^ { \circ } |
|
Answer» Thanks brother Thanks |
|