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(立方根25-算术平方根125)/四次方根25=?
人气:267 ℃ 时间:2019-10-24 14:06:53
解答
(3√25-√125)/4√25 = [ 5^(2/3) - 5^(3/2) ] / 5^(2/4) = 5^(2/3-1/2) - 5^(3/2-1/2)
=5^(1/6)-5
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