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           ☆算术计算1题

〖1/1算式〗
    作业：求算式 80/(1+6.5%/2)+80/(1+6.5%/2)^2+(50%×1906.545881+50%×2730.457848)/1+(6.5%/2)^2 的值.
    题型：数学计算
    解:
          80/(1+6.5%/2)+80/(1+6.5%/2)^2+(50%×1906.545881+50%×2730.457848)/1+(6.5%/2)^2
        =80/1.0325+80/(1+6.5%/2)^2+(50%×1906.545881+50%×2730.457848)/1+(6.5%/2)^2
        =80/1.0325+80/1.0325^2+(50%×1906.545881+50%×2730.457848)/1+(6.5%/2)^2
        =80/1.0325+80/1.0325^2+2318.501865/1+(6.5%/2)^2
        =80/1.0325+80/1.0325^2+2318.501865/1+0.0325^2
        =80/1.0325+80/1.06605625+2318.501865/1+0.0325^2
        =80/1.0325+80/1.06605625+2318.501865/1+0.00105625
        =77.48184+80/1.06605625+2318.501865/1+0.00105625
        =77.48184+75.042944+2318.501865/1+0.00105625
        =77.48184+75.042944+2318.501865+0.00105625
        =152.524784+2318.501865+0.00105625
        =2471.026649+0.00105625
        =2471.027705
    答案:80/(1+6.5%/2)+80/(1+6.5%/2)^2+(50%×1906.545881+50%×2730.457848)/1+(6.5%/2)^2=2471.027705

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