(10%-11%)²/0.5+(12%-11%)²/0.5=0.01%
解:(-1%/-1%)/0.5+(1%/1%)/0.5=0.01%这样解对吗?但是算不出来0.01%
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84785037 | 提问时间:2020 02/23 11:47
你好,(10%-11%)²/0.5+(12%-11%)²/0.5=0.01%,这个是错误的,应当等于万分之4才是
(10%-11%)²/0.5+(12%-11%)²/0.5=1%*1%/0.5+1%*1%/0.5=万分之2/0.5=万分之4
2020 02/23 11:52
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