(-1/3)×(-2/5)×(-13/26)附带过程(-1/3)×(-2/5)×(-13/26)谢谢

来源:学生作业学帮网 编辑:学帮网 时间:2024/06/11 23:32:28

(-1/3)×(-2/5)×(-13/26)
附带过程(-1/3)×(-2/5)×(-13/26)谢谢

=-(2/15)×(1/2)=-1/15