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若a的倒数是根号6减根号5则a是
人气:273 ℃ 时间:2020-04-01 01:35:23
解答
a = 1 / (√6-√5)
= (√6 + √5)/ (√6-√5)(√6+√5)
= (√6+√5)/ (6-5)
= √6+√5
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