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〖1/1算式〗
作业:求算式 ((11.04875-9.2844375)^2+(9.223-9.2844375)^2+(7.931-9.2844375)^2+(8.935-9.2844375)^2)/3 的值.
题型:数学计算
解:
((11.04875-9.2844375)^2+(9.223-9.2844375)^2+(7.931-9.2844375)^2+(8.935-9.2844375)^2)/3
=(1.764313^2+(9.223-9.2844375)^2+(7.931-9.2844375)^2+(8.935-9.2844375)^2)/3
=(1.764313^2+(-0.061437)^2+(7.931-9.2844375)^2+(8.935-9.2844375)^2)/3
=(1.764313^2+(-0.061437)^2+(-1.353437)^2+(8.935-9.2844375)^2)/3
=(1.764313^2+(-0.061437)^2+(-1.353437)^2+(-0.349437)^2)/3
=5.070473/3
=1.690158 答案:((11.04875-9.2844375)^2+(9.223-9.2844375)^2+(7.931-9.2844375)^2+(8.935-9.2844375)^2)/3=1.690158你的问题在这里没有得到解决?请到 热门难题 里面看看吧!