For a minimum value, the number except 2005: (2006 - a) must have a maximum value which must not exceed 4010. For 2005: (2006 - a) has the largest value, the divisor 2006 - a must have the smallest value greater than 0. Then: 2006 - a = 1 a = 2006-1 a = 2005 a = 2005 Then the expression A minimum value.
đang được dịch, vui lòng đợi..