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由绝对值的概念,我们不难得出绝对值有以下重要性质:(1)正数和0的绝对值是它本身,即非负数的绝对值是它本身.(2)任何一个数a的绝对值都是非负数,也就是说,任何一个数的绝对值都不小于0,即|a|≥0,也就是说绝对值的最小值是0.由此可知非负数有一个重要性质:几个非负数的和为零,则必有每个非负数为零.即若|a|+|b|+|c|=0.则a=
From the concept of absolute values, it is not difficult to find that the absolute value has the following important properties: (1) The absolute value of a positive number and 0 is itself, that is, the absolute value of a non-negative number is itself. (2) Absolute value of any number a The values are all non-negative, that is to say, the absolute value of any number is not less than 0, ie |a| ≥ 0, that is to say the minimum value of the absolute value is 0. It can be seen that non-negative numbers have an important property: several If the sum of non-negative numbers is zero, then each non-negative number must be zero. That is, if |a|+|b|+|c|=0, then a=