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数学计算:
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    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 2/3*14.3*1000*0.785*0.5*sin(3.141*0.281)*sin(3.141*0.281)*sin(3.141*0.281)/3.14159+300*25445/1000*0.45*(sin(0.281*3.141)+sin(3.14*(1.25-2*0.281))/3.141) 的值.
    题型:数学计算
    解:
          2/3*14.3*1000*0.785*0.5*sin(3.141*0.281)*sin(3.141*0.281)*sin(3.141*0.281)/3.14159+300*25445/1000*0.45*(sin(0.281*3.141)+sin(3.14*(1.25-2*0.281))/3.141)
        =2/3*14.3*1000*0.785*0.5*sin0.882621*sin(3.141*0.281)*sin(3.141*0.281)/3.14159+300*25445/1000*0.45*(sin(0.281*3.141)+sin(3.14*(1.25-2*0.281))/3.141)
        =2/3*14.3*1000*0.785*0.5*sin0.882621*sin0.882621*sin(3.141*0.281)/3.14159+300*25445/1000*0.45*(sin(0.281*3.141)+sin(3.14*(1.25-2*0.281))/3.141)
        =2/3*14.3*1000*0.785*0.5*sin0.882621*sin0.882621*sin0.882621/3.14159+300*25445/1000*0.45*(sin(0.281*3.141)+sin(3.14*(1.25-2*0.281))/3.141)
        =2/3*14.3*1000*0.785*0.5*sin0.882621*sin0.882621*sin0.882621/3.14159+300*25445/1000*0.45*(sin0.882621+sin(3.14*(1.25-2*0.281))/3.141)
        =2/3*14.3*1000*0.785*0.5*sin0.882621*sin0.882621*sin0.882621/3.14159+300*25445/1000*0.45*(sin0.882621+sin(3.14*0.688)/3.141)
        =2/3*14.3*1000*0.785*0.5*sin0.882621*sin0.882621*sin0.882621/3.14159+300*25445/1000*0.45*(sin0.882621+sin2.16032/3.141)
        =2/3*14.3*1000*0.785*0.5*sin0.882621*sin0.882621*sin0.882621/3.14159+300*25445/1000*0.45*1.037037
        =2/3*14.3*1000*0.785*0.5*0.772406*sin0.882621*sin0.882621/3.14159+300*25445/1000*0.45*1.037037
        =2/3*14.3*1000*0.785*0.5*0.772406*0.772406*sin0.882621/3.14159+300*25445/1000*0.45*1.037037
        =2/3*14.3*1000*0.785*0.5*0.772406*0.772406*0.772406/3.14159+300*25445/1000*0.45*1.037037
        =0.666667*14.3*1000*0.785*0.5*0.772406*0.772406*0.772406/3.14159+300*25445/1000*0.45*1.037037
        =9.533338*1000*0.785*0.5*0.772406*0.772406*0.772406/3.14159+300*25445/1000*0.45*1.037037
        =9533.338*0.785*0.5*0.772406*0.772406*0.772406/3.14159+300*25445/1000*0.45*1.037037
        =7483.67033*0.5*0.772406*0.772406*0.772406/3.14159+300*25445/1000*0.45*1.037037
        =3741.835165*0.772406*0.772406*0.772406/3.14159+300*25445/1000*0.45*1.037037
        =2890.215932*0.772406*0.772406/3.14159+300*25445/1000*0.45*1.037037
        =2232.420127*0.772406/3.14159+300*25445/1000*0.45*1.037037
        =1724.334701/3.14159+300*25445/1000*0.45*1.037037
        =548.873246+300*25445/1000*0.45*1.037037
        =548.873246+7633500/1000*0.45*1.037037
        =548.873246+7633.5*0.45*1.037037
        =548.873246+3435.075*1.037037
        =548.873246+3562.299873
        =4111.173119

    答案:2/3*14.3*1000*0.785*0.5*sin(3.141*0.281)*sin(3.141*0.281)*sin(3.141*0.281)/3.14159+300*25445/1000*0.45*(sin(0.281*3.141)+sin(3.14*(1.25-2*0.281))/3.141)=4111.173119
    注:弧度制


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