a的绝对值是2分之1,b的绝对值是3分之一,求a-b等于几
展开全部
|a| = 1/2, a = 1/2, a = -1/2
|b| = 1/3, b = 1/3, a = -1/3
1. a = 1/2, b = 1/3, a - b = 1/2 - 1/3 = 1/6
2. a = -1/2, b = 1/3, a -b = -1/2 - 1/3 = -5/6
3. a = 1/2, b = -1/3, a - b = 1/2 + 1/3 = 5/6
4. a = -1/2, b = -1/3, a - b = -1/2 + 1/3 = -1/6
|b| = 1/3, b = 1/3, a = -1/3
1. a = 1/2, b = 1/3, a - b = 1/2 - 1/3 = 1/6
2. a = -1/2, b = 1/3, a -b = -1/2 - 1/3 = -5/6
3. a = 1/2, b = -1/3, a - b = 1/2 + 1/3 = 5/6
4. a = -1/2, b = -1/3, a - b = -1/2 + 1/3 = -1/6
本回答被提问者和网友采纳
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
当a>0 b>0 时 a-b=1/2 -1/3 = 1/6
当a>0 b<0 时 a-b=1/2 +1/3 = 5/6
当a<0 b>0 时 a-b=-1/2 -1/3 = -5/6
当a><0 b<0 时 a-b=-1/2 +1/3 = -1/6
当a>0 b<0 时 a-b=1/2 +1/3 = 5/6
当a<0 b>0 时 a-b=-1/2 -1/3 = -5/6
当a><0 b<0 时 a-b=-1/2 +1/3 = -1/6
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
a=1/2, a=-1/2
b=1/3, b=-1/3
a-b=1/6, 5/6, -5/6 , -1/6
b=1/3, b=-1/3
a-b=1/6, 5/6, -5/6 , -1/6
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询
广告 您可能关注的内容 |