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〖1/1算式〗
    作业：求算式 2/3*14300*0.5/4*(sin(180*0.206))^3+300*3.142*0.44/3.14159*(sin(180*0.206)+sin(180*(1.25-0.206*2))) 的值.
    题型：数学计算
    解:
          2/3*14300*0.5/4*(sin(180*0.206))^3+300*3.142*0.44/3.14159*(sin(180*0.206)+sin(180*(1.25-0.206*2)))
        =2/3*14300*0.5/4*(sin37.08)^3+300*3.142*0.44/3.14159*(sin(180*0.206)+sin(180*(1.25-0.206*2)))
        =2/3*14300*0.5/4*(-0.580312)^3+300*3.142*0.44/3.14159*(sin(180*0.206)+sin(180*(1.25-0.206*2)))
        =2/3*14300*0.5/4*(-0.580312)^3+300*3.142*0.44/3.14159*(sin37.08+sin(180*(1.25-0.206*2)))
        =2/3*14300*0.5/4*(-0.580312)^3+300*3.142*0.44/3.14159*(sin37.08+sin(180*0.838))
        =2/3*14300*0.5/4*(-0.580312)^3+300*3.142*0.44/3.14159*(sin37.08+sin150.84)
        =2/3*14300*0.5/4*(-0.580312)^3+300*3.142*0.44/3.14159*(-0.536773)
        =2/3*14300*0.5/4*-0.195427039808931+300*3.142*0.44/3.14159*(-0.536773)
        =0.666667*14300*0.5/4*(-0.195427039808931)+300*3.142*0.44/3.14159*(-0.536773)
        =9533.3381*0.5/4*(-0.195427039808931)+300*3.142*0.44/3.14159*(-0.536773)
        =4766.66905/4*(-0.195427039808931)+300*3.142*0.44/3.14159*(-0.536773)
        =1191.667263*(-0.195427039808931)+300*3.142*0.44/3.14159*(-0.536773)
        =(-232.884006)+300*3.142*0.44/3.14159*(-0.536773)
        =-232.884006+942.6*0.44/3.14159*(-0.536773)
        =-232.884006+414.744/3.14159*(-0.536773)
        =-232.884006+132.017227*(-0.536773)
        =-232.884006+(-70.863283)
        =-303.747289
    答案:2/3*14300*0.5/4*(sin(180*0.206))^3+300*3.142*0.44/3.14159*(sin(180*0.206)+sin(180*(1.25-0.206*2)))=-303.747289
    注：弧度制

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