计算|1-根号2|-|根号2-根号3|+|根号3-1|

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计算|1-根号2|-|根号2-根号3|+|根号3-1|

计算|1-根号2|-|根号2-根号3|+|根号3-1|
计算|1-根号2|-|根号2-根号3|+|根号3-1|

计算|1-根号2|-|根号2-根号3|+|根号3-1|
|1-根号2|-|根号2-根号3|+|根号3-1|
=√2-1-(√3-√2)+(√3-1)
=√2-1-√3+√2+√3-1
=2√2-2