总述：本次共解1题。其中
           ☆算术计算1题

〖1/1算式〗
    作业：求算式 42.5/(1+7%/2)+42.5/(1+7%/2)^2+(50%*1052.987578+50%*1315.833551)*(1+7%/2)^2 的值.
    题型：数学计算
    解:
          42.5/(1+7%/2)+42.5/(1+7%/2)^2+(50%*1052.987578+50%*1315.833551)*(1+7%/2)^2
        =42.5/1.035+42.5/(1+7%/2)^2+(50%*1052.987578+50%*1315.833551)*(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+(50%*1052.987578+50%*1315.833551)*(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+1184.410564*(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+1184.410564*1.035^2
        =42.5/1.035+42.5/1.071225+1184.410564*1.035^2
        =42.5/1.035+42.5/1.071225+1184.410564*1.071225
        =41.062802+42.5/1.071225+1184.410564*1.071225
        =41.062802+39.674205+1184.410564*1.071225
        =41.062802+39.674205+1268.770206
        =80.737007+1268.770206
        =1349.507213
    答案:42.5/(1+7%/2)+42.5/(1+7%/2)^2+(50%*1052.987578+50%*1315.833551)*(1+7%/2)^2=1349.507213

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