... ) 3 1< /b> 6.dvtt 3 12< /b> < /b> SABC ABCaVSAS D ==0.250.250.250.25Cõu5( 1< /b> im)Cúx,y,z>0,t:a=x 3 , b =y 3 ,c=z 3 ( a,< /b> b ,c>0abc= 1)< /b> Tacú: 3 3 3 3 3 3222222a b bccaPaab ... )200000 3 2 1< /b> 0 1< /b> 1 1< /b> 3 xxxxx - < /b> - =ạ - < /b> = ộ ờ ờ = - < /b> ờ ởvycú2imMthomónl: 3 1< /b> 5 1< /b> 2 3 2MM ổửổử - < /b> ỗữỗữ ốứốứ0.250.250.25Cõu2 1(< /b> 1.< /b> 0) ... ¥*)Đồthị:Đồthịhàmsốđiquacácđiểm(2;0),(0;2)0.250.250.250.252( 1.< /b> 0đ)0.252yx 1< /b> 1< /b> 2licú 1< /b> ..66OA B Ca b cVOAO B OC ==mtkhỏc: 3 1< /b> 2 3 6 1< /b> 3 6.2727OABCabcVa b cabc =++ịịsuyra...