InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
4 . \operatorname { sin } 10 ^ { \circ } + \operatorname { sin } 20 ^ { \circ } + \operatorname { sin } 40 ^ { \circ } + \operatorname { sin } 50 ^ { \circ } = \operatorname { sin } 70 ^ { \circ } + \operatorname { sin } 80 ^ { \circ } |
| Answer» | |