由图可知 a0 且 |a|>|b|
所以
|a+b|+|a|+|b|
= -a-b-a+b
= -2a你弄错方向了，a是负数，b是正数没错，要认真看哦是哦，看错了O(∩_∩)O谢谢
已知a、b的位置如图a所示,那么|a+b|+|a|+|b|=
已知a、b的位置如图a所示,那么|a+b|+|a|+|b|=
如图a————————————————————————
a 0 b
那点打不出来,先这样看着哈0.0.
如图a————————————————————————
a 0 b
那点打不出来,先这样看着哈0.0.
数学人气：844 ℃时间：2020-04-20 07:41:15
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