luypn thi Dai hpc, giao vien toan, sinh vien toan cua cac tmong DHSP,D H K H T N cung nhu la tai phyc v\ cho cac ky thi tuyen sinh D ^ i hpc, thi hpcsinh gioi toan THPT, thi Olympic 30/04.Cac ban hpc sinh, sinh vien, giao vien va nhirng nguoi quan tarn khac se c6the a m tha'y thieu sot a cuon sach n[r]