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*0.4*0.4*0.4*sin(180*0.311)*sin(180*0.311)*sin(180*0.311)+300*3.77*0.35*sin(180*0.311)/3.14159 的值.
    题型：数学计算
    解:
          2/3*14.3*1000*0.4*0.4*0.4*sin(180*0.311)*sin(180*0.311)*sin(180*0.311)+300*3.77*0.35*sin(180*0.311)/3.14159
        =2/3*14.3*1000*0.4*0.4*0.4*sin55.98*sin(180*0.311)*sin(180*0.311)+300*3.77*0.35*sin(180*0.311)/3.14159
        =2/3*14.3*1000*0.4*0.4*0.4*sin55.98*sin55.98*sin(180*0.311)+300*3.77*0.35*sin(180*0.311)/3.14159
        =2/3*14.3*1000*0.4*0.4*0.4*sin55.98*sin55.98*sin55.98+300*3.77*0.35*sin(180*0.311)/3.14159
        =2/3*14.3*1000*0.4*0.4*0.4*sin55.98*sin55.98*sin55.98+300*3.77*0.35*sin55.98/3.14159
        =2/3*14.3*1000*0.4*0.4*0.4*-0.53851*sin55.98*sin55.98+300*3.77*0.35*sin55.98/3.14159
        =2/3*14.3*1000*0.4*0.4*0.4*-0.53851*-0.53851*sin55.98+300*3.77*0.35*sin55.98/3.14159
        =2/3*14.3*1000*0.4*0.4*0.4*-0.53851*-0.53851*-0.53851+300*3.77*0.35*sin55.98/3.14159
        =2/3*14.3*1000*0.4*0.4*0.4*-0.53851*-0.53851*-0.53851+300*3.77*0.35*-0.53851/3.14159
        =0.666667*14.3*1000*0.4*0.4*0.4*(-0.53851)*(-0.53851)*(-0.53851)+300*3.77*0.35*(-0.53851)/3.14159
        =9.533338*1000*0.4*0.4*0.4*(-0.53851)*(-0.53851)*(-0.53851)+300*3.77*0.35*(-0.53851)/3.14159
        =9533.338*0.4*0.4*0.4*(-0.53851)*(-0.53851)*(-0.53851)+300*3.77*0.35*(-0.53851)/3.14159
        =3813.3352*0.4*0.4*(-0.53851)*(-0.53851)*(-0.53851)+300*3.77*0.35*(-0.53851)/3.14159
        =1525.33408*0.4*(-0.53851)*(-0.53851)*(-0.53851)+300*3.77*0.35*(-0.53851)/3.14159
        =610.133632*(-0.53851)*(-0.53851)*(-0.53851)+300*3.77*0.35*(-0.53851)/3.14159
        =(-328.563062)*(-0.53851)*(-0.53851)+300*3.77*0.35*(-0.53851)/3.14159
        =176.934495*(-0.53851)+300*3.77*0.35*(-0.53851)/3.14159
        =(-95.280995)+300*3.77*0.35*(-0.53851)/3.14159
        =-95.280995+1131*0.35*(-0.53851)/3.14159
        =-95.280995+395.85*(-0.53851)/3.14159
        =-95.280995+(-213.169184)/3.14159
        =-95.280995+(-67.853916)
        =-163.134911
    答案:2/3*14.3*1000*0.4*0.4*0.4*sin(180*0.311)*sin(180*0.311)*sin(180*0.311)+300*3.77*0.35*sin(180*0.311)/3.14159=-163.134911
    注：弧度制

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