计算:/1-根号2/+/根号3-根号2/+/根号3-根号4/./根号2009-根号2010/

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计算:/1-根号2/+/根号3-根号2/+/根号3-根号4/./根号2009-根号2010/

计算:/1-根号2/+/根号3-根号2/+/根号3-根号4/./根号2009-根号2010/
计算:/1-根号2/+/根号3-根号2/+/根号3-根号4/./根号2009-根号2010/

计算:/1-根号2/+/根号3-根号2/+/根号3-根号4/./根号2009-根号2010/
计算:/1-根号2/+/根号3-根号2/+/根号3-根号4/./根号2009-根号2010/
=根号2-1+根号3-根号2+根号4-根号3+...+根号2010-根号2009
=根号2010-1