Chủ đề:
Violympic toán 8Câu hỏi:
\(https://scontent.fdad2-1.fna.fbcdn.net/v/t1.15752-9/72435448_400550907560081_2645673521891508224_n.jpg?_nc_cat=109&_nc_eui2=AeF2TqMHNtetarLGLgm_cAyFC8HdiBdbDs9vUFJu37M4O7bg6P3qC9_2M38Tp_AGIXaZjcMDeya-1_XFFAntTLci8DQ8A-yoOKheldLzpJMp-Q&_nc_oc=AQk2wzc3DZJrFXjk3SV5LJ-DYQ6qEHFkoR7-NpYgPltYqyRnwqTkSxQ-jlaakkaisQQOevydRtLfW22gK0pyPdU4&_nc_ht=scontent.fdad2-1.fna&oh=f924c3ae7f49718a553e5894eb71bb94&oe=5E2E425B\)