An inequality involving the angle bisectors and an interior point of a triangle - Wei-Dong Jiang We establish a new weighted geometric inequality involving the lengths of the angle bisectors and the radii of three circles through an interior point of a triangle. From this, several interesting geometric inequalities are derived. ✪ ✪ ✪ ✪ ✪ Link tải tài liệu: LINK TẢI TÀI LIỆU Theo LTTK Education