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数学
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化简根号3加根号5的和除以3减根号6减根号10加根号15
人气:129 ℃ 时间:2019-11-18 22:06:44
解答
(√3+√5)/(3-√6-√10+√15)
=(√3+√5)/[√3(√3-√2)+√5(√3-√2)]
=(√3+√5)/(√3-√2)(√3+√5)
=1/(√3-√2)
=(√3+√2)/(√3-√2)(√3+√2)
=√3+√2
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