tir dd suy ra gid tri ldn nhit
va gid tri nhd nhdt ciia bieu thiie.B. BAI TAP MAURAI 1Bilu didn hinh hpe tap nghiem ciia bit
phuong trinh2x- -y GidiVe dudng thing (A) cd
phuong trinh2x - y = 3.Ta thdy c = 3 > 0 nen miin nghidmeiia bit
phuong trinh da cho la niramat[r]