A synthetic proof of Goormaghtigh's generalization of Musselman's theorem - Khoa Lu Nguyen We give a synthetic proof of a generalization by R.Goormaghtigh of a theorem of J. H.Musselman. ✪ ✪ ✪ ✪ ✪ Link tải tài liệu: LINK TẢI TÀI LIỆU Theo LTTK Education