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数学
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已知a、b、c为△ABC的三边,化简:|a+b-c|+|a-b-c|-|a-b+c|=______.
人气:154 ℃ 时间:2019-09-23 09:10:09
解答
|a+b-c|+|a-b-c|-|a-b+c|,
=(a+b-c)+(-a+b+c)-(a-b+c),
=a+b-c-a+b+c-a+b-c,
=-a+3b-c,
故答案为:-a+3b-c.
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