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1.根号2×4次根号下8
人气:284 ℃ 时间:2020-02-04 04:08:17
解答
√2×⁴√8
=2^(1/2)×8^(1/4)
=2^(1/2)×2^(3/4)
=2^(1/2+3/4)
=2^(5/4)
=2×⁴√2
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