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①√72-√18/√8-(√3+1)(√3-1)②√27-√1/3+√12 化简,
人气:461 ℃ 时间:2020-02-04 04:05:27
解答
①√72-√18/√8-(√3+1)(√3-1)
=6√2-3/2-(3-1)
=3√2-2
②√27-√1/3+√12
=3√3-1/3√3+2√3
=14/3√3
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