InterviewSolution
Saved Bookmarks
| 1. |
AL, BM and CN are perpendicular from angular points of a triangle ABC on the opposite sides BC, CA and AB respectively. Delta is the area of triangle ABC, (r ) and R are the inradius and circumradius. IF areas of Delta 's AMN, BNL and CLM are Delta_(1), Delta_(2)and Delta_(3) respectively, then the valur of Delta _(1)+Delta_(2)+Delta _(3) is |
|
Answer» `DELTA (2+2 COS A cos B cos C)` |
|