计算:2×根号下2/3×根号2-根号下(2-根号5)²+1/根号5+2

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计算:2×根号下2/3×根号2-根号下(2-根号5)²+1/根号5+2
计算:2×根号下2/3×根号2-根号下(2-根号5)²+1/根号5+2

计算:2×根号下2/3×根号2-根号下(2-根号5)²+1/根号5+2