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hangut94


cho ham so y=x^3-3mx+2
tim m de duong thag qua 2 diem cuc tri cua do thi ham so tao voi cac truc toa do mot tam giac co dien tich bang 4
tim m de duong thag qua 2 diem cuc tri cua do thi ham so tao voi cac truc toa do mot tam giac co dien tich bang 4