问题:
若a+b=0,b≠0,则-
a
b
=______;若
|a|
b
=-1,则b+|a|=______.
若a+b=0,b≠0,则-
=______;若
=-1,则b+|a|=______.
a |
b |
|a| |
b |
参考答案: