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[0.3×(20%-8.5%)2+0.4×(10%-8.5%)2+0.3×(-5%-8.5%)2]?=9.76%請(qǐng)問(wèn)一下這個(gè)答案是怎么算出來(lái)
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你好,這個(gè)要用到科學(xué)計(jì)算器了,要開(kāi)平方和開(kāi)根號(hào)。
2022 01/19 16:09
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2022 01/19 16:11
就是不明白怎么算出來(lái)
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2022 01/19 16:18
題庫(kù)里計(jì)算機(jī)沒(méi)有開(kāi)根號(hào)
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2022 01/19 16:45
把照片給我下,我看看有沒(méi)有切換成科學(xué)計(jì)算器的地方。
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