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计算(√8-2√0.25)-(√9/8+2/3√72)
人气:449 ℃ 时间:2020-03-28 10:08:21
解答
=2√2-√1-(3/4)√2-(2/3)*6√2
=2√2-1-(3/4)√2-4√2
=-1-(11/4)√2
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