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〖1/1算式〗
作业:求算式 2.95*e^(-0.019368)×1+2*2.95*e^(-0.019368*2)+3*(100+2.95)*e^(-0.019368*3) 的值.
题型:数学计算
解:
2.95*e^(-0.019368)×1+2*2.95*e^(-0.019368*2)+3*(100+2.95)*e^(-0.019368*3)
=2.95*e^(-0.019368)×1+2*2.95*e^(-0.019368*2)+3*(100+2.95)*e^(-0.019368*3)
=2.95*e^-0.019368×1+2*2.95*e^(-0.038736)+3*(100+2.95)*e^(-0.019368*3)
=2.95*e^-0.019368×1+2*2.95*e^-0.038736+3*102.95*e^(-0.019368*3)
=2.95*e^-0.019368×1+2*2.95*e^-0.038736+3*102.95*e^(-0.058104)
=2.95*2.718282^-0.019368×1+2*2.95*e^-0.038736+3*102.95*e^-0.058104
=2.95*2.718282^-0.019368×1+2*2.95*2.718282^-0.038736+3*102.95*e^-0.058104
=2.95*2.718282^-0.019368×1+2*2.95*2.718282^-0.038736+3*102.95*2.718282^-0.058104
=2.95*0.980818353468169×1+2*2.95*2.718282^(-0.038736)+3*102.95*2.718282^(-0.058104)
=2.95*0.980818353468169×1+2*2.95*0.96200464250001+3*102.95*2.718282^(-0.058104)
=2.95*0.980818353468169×1+2*2.95*0.96200464250001+3*102.95*0.943551809485594
=2.893414×1+2*2.95*0.96200464250001+3*102.95*0.943551809485594
=2.893414+2*2.95*0.96200464250001+3*102.95*0.943551809485594
=2.893414+5.9*0.96200464250001+3*102.95*0.943551809485594
=2.893414+5.675827+3*102.95*0.943551809485594
=2.893414+5.675827+308.85*0.943551809485594
=2.893414+5.675827+291.415976
=8.569241+291.415976
=299.985217 答案:2.95*e^(-0.019368)×1+2*2.95*e^(-0.019368*2)+3*(100+2.95)*e^(-0.019368*3)=299.985217你的问题在这里没有得到解决?请到 热门难题 里面看看吧!