Signed distances and the Erdos-Mordell inequality - Nikolaos Dergiades Using signed distances from the sides of a triangle we prove an inequality from which we get the Erdős-Mordell inequality as a simple consequence. ✪ ✪ ✪ ✪ ✪ Link tải tài liệu: LINK TẢI TÀI LIỆU Theo LTTK Education