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> .实数a、b在数轴上的位置如图所示,那么化简|a-b|-的结果是()A.2a-bB.bC.-bD.-2a+b-九年级数学
.实数a、b在数轴上的位置如图所示,那么化简|a-b|-的结果是()A.2a-bB.bC.-bD.-2a+b-九年级数学
题目简介
.实数a、b在数轴上的位置如图所示,那么化简|a-b|-的结果是()A.2a-bB.bC.-bD.-2a+b-九年级数学
题目详情
.实数a、b在数轴上的位置如图所示,那么化简|a-b|-
的结果是 ( )
A. 2a-b B. b C. -b D. -2a+b
题型:单选题
难度:偏易
来源:不详
答案
C
根据数轴可知:
a<0,b>0,∴
|a-b|-
=a-b-a=-b 故选C.
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题目简介
.实数a、b在数轴上的位置如图所示,那么化简|a-b|-的结果是()A.2a-bB.bC.-bD.-2a+b-九年级数学
题目详情
A. 2a-b B. b C. -b D. -2a+b
答案
a<0,b>0,∴