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数学
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(根号18-根号27)÷根号6+8根号1/2
人气:439 ℃ 时间:2019-10-27 09:45:59
解答
(根号18-根号27)÷根号6+8根号1/2
= √3-√9/2+4√2
=√3-3/2√+4√2
=√3+5/2√2
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