a的相反数的平方与b的立方的倒数的和 用代数式可表达为
a的相反数的平方与b的立方的倒数的和 用代数式可表达为
数学人气:322 ℃时间:2020-01-29 09:01:17
优质解答
(-a)^2+1/b^3
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