已知a<0,b<0,c>0,|c|>|a|,|b||>|c|,则||a+c|+|b+c|-|a-b|化简结果为 A.0 B.2b+2c D.2a+2c C.2a+2b
人气:481 ℃ 时间:2020-03-23 10:20:47
解答
已知a<0,b<0,c>0,
|c|>|a|,|b||>|c|,
那么:|b|>|a|
|a+c|+|b+c|-|a-b|
=a+c-(b+c)-a+b
=a+c-b-c-a+b
=0
所以答案:A.0
推荐
猜你喜欢
- of,the,in,the,school,pay,front,is,phone
- 高等代数中,矩阵之间等价、合同、正交相似的典范型都是对角矩阵,但...
- How did the baby eagle feel as he soon as he saw his mother coming again的意思
- 数学的算术
- 怎样评价孔融的两个儿子
- 南瓜糯米盅怎么做
- 已知玩碰碰车的同学美人租用一辆车,划船的同学每4人合租一条船...
- they work in beijing hospital.一般问句.好的话还给+