|1-根号2|+|根号2-根号3l+|根号2-1|

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/07 23:35:00

|1-根号2|+|根号2-根号3l+|根号2-1|
|1-根号2|+|根号2-根号3l+|根号2-1|

|1-根号2|+|根号2-根号3l+|根号2-1|
= -(1-根号2)-(根号2-根号3)+根号2-1
= -1+根号2-根号2+根号3+根号2-1
= 根号3+根号2-2

=根号2+根号3-2

根号2+根号3-2