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%*((42.5/4%)*(1-1/(1+4%)^48)+10000/(1+4%)^48)+50%*((42.5/3%)*(1-1/(1+3%)^48)+10000/(1+3%)^48))/(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%*((42.5/4%)*(1-1/(1+4%)^48)+10000/(1+4%)^48)+50%*((42.5/3%)*(1-1/(1+3%)^48)+10000/(1+3%)^48))/(1+7%/2)^2
        =42.5/1.035+42.5/(1+7%/2)^2+(50%*((42.5/4%)*(1-1/(1+4%)^48)+10000/(1+4%)^48)+50%*((42.5/3%)*(1-1/(1+3%)^48)+10000/(1+3%)^48))/(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+(50%*((42.5/4%)*(1-1/(1+4%)^48)+10000/(1+4%)^48)+50%*((42.5/3%)*(1-1/(1+3%)^48)+10000/(1+3%)^48))/(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+(50%*(1062.5*(1-1/(1+4%)^48)+10000/(1+4%)^48)+50%*((42.5/3%)*(1-1/(1+3%)^48)+10000/(1+3%)^48))/(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+(50%*(1062.5*(1-1/1.04^48)+10000/(1+4%)^48)+50%*((42.5/3%)*(1-1/(1+3%)^48)+10000/(1+3%)^48))/(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+(50%*(1062.5*0.847805+10000/(1+4%)^48)+50%*((42.5/3%)*(1-1/(1+3%)^48)+10000/(1+3%)^48))/(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+(50%*(1062.5*0.847805+10000/1.04^48)+50%*((42.5/3%)*(1-1/(1+3%)^48)+10000/(1+3%)^48))/(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+(50%*2422.74046+50%*((42.5/3%)*(1-1/(1+3%)^48)+10000/(1+3%)^48))/(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+(50%*2422.74046+50%*(1416.666667*(1-1/(1+3%)^48)+10000/(1+3%)^48))/(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+(50%*2422.74046+50%*(1416.666667*(1-1/1.03^48)+10000/(1+3%)^48))/(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+(50%*2422.74046+50%*(1416.666667*0.758001+10000/(1+3%)^48))/(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+(50%*2422.74046+50%*(1416.666667*0.758001+10000/1.03^48))/(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+(50%*2422.74046+50%*3493.822759)/(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+2958.28161/(1+7%/2)^2
        =42.5/1.035+42.5/1.035^2+2958.28161/1.035^2
        =42.5/1.035+42.5/1.071225+2958.28161/1.035^2
        =42.5/1.035+42.5/1.071225+2958.28161/1.071225
        =41.062802+42.5/1.071225+2958.28161/1.071225
        =41.062802+39.674205+2958.28161/1.071225
        =41.062802+39.674205+2761.587538
        =80.737007+2761.587538
        =2842.324545
    答案:42.5/(1+7%/2)+42.5/(1+7%/2)^2+(50%*((42.5/4%)*(1-1/(1+4%)^48)+10000/(1+4%)^48)+50%*((42.5/3%)*(1-1/(1+3%)^48)+10000/(1+3%)^48))/(1+7%/2)^2=2842.324545

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