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ali hoahoc 9x hasn't added any friends yet.
23-09-2007 - 12:12
22-09-2007 - 01:16
20-09-2007 - 22:05
13-09-2007 - 19:37
hi moi nguoi minh muon hoi cac ban 3 bai 1/tim min, max ham f(x)= 5x^{2} + 3 :sqrt{1- x^{2} } 2/chung minh phuong trinh x^{7} - x^{2} -2x -1=0 co duy nhat 1 nghiem 3/ tim max cua ham f(x)= x+ :sqrt{x} + :sqrt[4]{1-x} + :sqrt[6]{1-2x} cac ban giup minh nhe!!!!!!!!!