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计算:跟号0.32*0.6*0.27
人气:380 ℃ 时间:2020-05-26 23:51:47
解答
=√(0.16×0.2×0.2×0.81)
=√0.16×√(0.2)²×√0.81
=0.4×0.2×0.9
=0.072
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